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Author Topic: Change of Engine oil Back to Topics
lyanMI

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Detroit

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Message Posted: Sep 25, 2012 3:55:42 PM

I recently went to Chevy dealership for regular oil change, they changed my engine oil. I always used Non synthetic Mobil 1 oil.

Will that effect my engine?
REPLIES (newest first) Topic is locked
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pghbill
Champion Author Pittsburgh

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Message Posted: Jan 9, 2014 12:21:00 AM

no
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pawnkingfour
Champion Author Georgia

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Message Posted: Jan 8, 2014 9:52:58 PM

The original message was posted on Sept 25, 2012.

Nevertheless, I use oil based on manufacturer's recommendation.
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Gas_Buddy
Champion Author Maryland

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Message Posted: Jan 8, 2014 7:53:34 PM

This thread has been inactive for almost a year and the original poster last acknowledged input more than a year ago.

This thread serves no use and should be closed due to inactivity.
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luvmyrv
All-Star Author Winnipeg

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Message Posted: Jan 8, 2014 4:26:59 PM

I use synthetic in winter for cold engine starting and conventional in spring summer and fall.
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Vin63
Champion Author San Bernardino

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Message Posted: Jan 8, 2014 10:38:14 AM

Today's oil is oil. Unless you are going to practice extended oil change intervals, there really is no difference except for cost/price.
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PAA64
Champion Author Cincinnati

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Message Posted: Jan 5, 2014 12:46:31 AM

helps only for milage.
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IAMCANADIAN73
Champion Author Ontario

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Message Posted: Feb 7, 2013 6:39:26 AM

It matters
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traffic cop
Champion Author Boston

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Message Posted: Feb 6, 2013 12:12:17 PM

WTM, thanks for the input. I'd appreciate other people's confirmation on this.

I have on-hand regular dinojuice for my next change, so I'll use that. After these next 5K miles, I'll probably take Houckster's recommendation and go Amsoil all the way, oil and filter.

The precinct mechanic is happy to do it, if I provide the products. A convenience and a savings right there!
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cv
Champion Author Raleigh

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Message Posted: Feb 4, 2013 6:44:47 AM

Most probably it won't matter at all.
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GrumpyCat
Champion Author Alabama

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Message Posted: Feb 3, 2013 11:10:03 PM

Mobil-1 is synthetic, contrary to the thread's originator's claim.

Synthetic means almost nothing. Synthetic is not a performance specification for motor oil, it is only a manufacturing technique which could be used to produce a superior product but is no assurance that a superior product was actually created.
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WTM
Champion Author Philadelphia

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Message Posted: Feb 3, 2013 10:09:04 PM

traffic cop wrote: "I heard that once you go synthetic, you should never go back to conventional oils."

Not true. Synthetic & conventional motor oils(especially within a specific brand) are completely compatible with one another. And modern engines do not "know" or have a "memory" of what kind of motor oils that are used in them. No worries...you may switch back-n-forth between Syn. & conv. oils without adverse effects.
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73amx
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Message Posted: Feb 3, 2013 3:50:18 PM

no
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Mr1lung
Champion Author Phoenix

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Message Posted: Feb 2, 2013 1:50:24 PM

no
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traffic cop
Champion Author Boston

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Message Posted: Feb 2, 2013 1:00:30 PM

I heard that once you go synthetic, you should never go back to conventional oils.

Any truth to that? And if so, what is the downside to returning to cheaper conventionals?

Has anybody recorded their data and done the arithmetic on their vehicles to validate the claims for increased mileage? Improved engine wear aside, does the improved mileage (with less frequent changes factored in)validate the higher cost of synthetic?

DontyouknowOH is quite the mathematician, and I'm especially interested in Houckster's take on this. At 65K miles, have I missed the important years of going synthetic? (09 Sienna XLE ltd AWD V-6)
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fatso
Veteran Author Indianapolis

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Message Posted: Jan 7, 2013 10:45:46 PM

No! But synthetic oil will give you better gas milage.
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1007
Champion Author Michigan

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Message Posted: Jan 7, 2013 5:29:27 PM

NO
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1007
Champion Author Michigan

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Message Posted: Jan 7, 2013 5:29:26 PM

NO
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OilerFan
Champion Author Tulsa

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Message Posted: Jan 7, 2013 8:17:44 AM

I wouldn't worry about it as long as it's the proper weight.
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dgsteven
Champion Author Los Angeles

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Message Posted: Jan 7, 2013 3:26:12 AM

no
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PatAZ
Champion Author Tucson

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Message Posted: Dec 8, 2012 10:52:49 AM

You are totaly wrong about that skidsteer.
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Houckster
Champion Author Atlanta

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Message Posted: Dec 8, 2012 9:58:12 AM

GRUMPYCAT writes:
Synthetic is not a technical term.
Synthetic is not a performance specification.
Synthetic is a marketing word.
Synthetic is a manufacturing process which says almost nothing about the final product.

ME: I generally agree. The term "synthetic" means very little BUT it does mean something in terms of what people expect and there's the rub. Makers of the "pretender" synthetics are not eager to explain that they're selling dino juice instead of a Group IV or V lubricant. In fact they don't want you to know at all. Find me one marketer, Mobil or anyone else who'll tell you that the synthetic they're selling is mostly Group III dino.
______
GRUMPYCAT writes: It matters far less whether an oil is synthetic or refined than the care and knowledge of its maker. An idiot can not make a good synthetic motor oil.

Matters even less whether an oil is Group III, IV or V.

ME: This is fundamentally wrong. It does make a difference and that is why the API has different oil groups. True synthetic motor oils, if properly blended do have advantages over even the best dino oils though in some cases, the difference can be small in normal usage.

What must be remembered is that dino juice is a reactive substance that requires a large amount of additives to protect it from the heat, combustion byproducts, and moisture that are part of the crankcase environment. A quart of the current SN oils have as much as 25-30% of the volume dedicated to additives while true synthetics are far less prone to deterioration because they were designed to be less reactive to their environment. That's why a true synthetic lubricant will last longer than a dino juice lube under the same circumstances. It should also be remembered that all those additives that are in the oil to protect if may actually have no lubricating properties so only about 70-75% of the oil is actually lubricating the engine.
_______
GRUMPYCAT writes: The most important thing is to change your oil at reasonable intervals. 5,000 miles is a very good interval. If your vehicle specifies 10,000 then follow the manufacturer's instructions and use the specified oil.

ME: I must disagree again. Mileage intervals are, first and foremost, are a very poor indicator of when to change a motor oil. The only advantage that mileage intervals have is that they're simple and inexpensive. At the end of an OEM interval, the oil may be perfectly good but OEM intervals are and must be very conservative so that they don't get stuck with warranty claims. Maybe 5K miles is a good interval for normal motor oil, say a "synthetic" blend of which only 10-15% is actually "synthetic" and that "synthetic" may actually be Group III dino juice. In contrast, a 5K interval for a true synthetic is a waste.

There's a fundamental difference between dino oils and true synthetics. Crude can come from any part of the world and can therefore have fundamentally different viscosity and other characteristics. Thus when an oil marketer receives a supply of oil from a refiner (API-SA or SB), the marketer must send the oil in to be analyzed and a custom additive package is developed for that batch of oil. Consequently, if you buy a brand of dino juice one month and then six months later buy the same oil, they may be very different. While each meets the API standards in effect at the time of manufacture, the additive package to reach that standard could be very different. That's why the type of people who are interested in oil and want to standardize on a particular brand of dino juice will often buy a case of the oil so they know that the oil will be the same from change to change. They will get the first oil used analyzed and then base the change interval on subsequent changes on the test results they got.

In contrast, a quart of synthetic lubricant will be the same every time you buy it unless the marketer has decided to change the specs for some reason.

The point of my posts is that when people pay for a synthetic lubricant, they ought to get a real one and they don't when they buy products from Mobil, Pennzoil, Royal Purple, and Castrol. This is not to say that the "synthetic" oils these companies sell are not good, they most certainly are but they are not true synthetics like those from Synlube, Redline and Amsoil Signature.

[Edited by: Houckster at 12/8/2012 10:00:52 AM EST]
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GrumpyCat
Champion Author Alabama

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Message Posted: Dec 8, 2012 1:05:33 AM

There is no such thing as non-synthetic Mobil-1 oil. If it is Mobil-1 it is synthetic.

However, Mobil Oil Company makes refined motor oil sold under the Mobil name.
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skidsteer85xt
Champion Author Indiana

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Message Posted: Dec 7, 2012 10:49:08 PM

once u use it u cant switch back.
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carinthuist
Champion Author San Francisco

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Message Posted: Nov 29, 2012 2:20:38 PM

had changed oil some one else
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Dennis783
Champion Author Des Moines

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Message Posted: Nov 29, 2012 7:48:33 AM

yea its about time for my oil change too
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ricebike
Champion Author New Jersey

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Message Posted: Nov 29, 2012 6:13:45 AM

cat, one of the benefits of using synthetic over regular oil is longer change intervals...

other than that, i agree with your other points
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GrumpyCat
Champion Author Alabama

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Message Posted: Nov 28, 2012 4:39:39 PM

Synthetic is not a technical term.
Synthetic is not a performance specification.
Synthetic is a marketing word.
Synthetic is a manufacturing process which says almost nothing about the final product.

It matters far less whether an oil is synthetic or refined than the care and knowledge of its maker. An idiot can not make a good synthetic motor oil.

Matters even less whether an oil is Group III, IV or V.

The most important thing is to change your oil at reasonable intervals. 5,000 miles is a very good interval. If your vehicle specifies 10,000 then follow the manufacturer's instructions and use the specified oil.
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Houckster
Champion Author Atlanta

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Message Posted: Nov 28, 2012 12:48:43 PM

DREAMER4ONE5 writes:Mobile 1 is synthetic, Our dealership uses regular Mobile oil, but after the 2nd oil change we asked if we could switch our 2011 Sorento to Mobile 1 and they were more than happy to switch us over (with a price increase of course) my goodness. . I would NEVER go back to dino juice!!!! We have on 05 Silverado that has been a Mobile 1 user her whole life. The engine runs smoother, starts up and gets to temp faster.
_____
Some Mobil 1 European formulas are synthetic but generally Mobil 1 is dino juice composed primarily of Group III petroleum. It's a good oil but it's not synthetic like Redline, SynLube or Amsoil Signature.
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Dreamer4one5
Sophomore Author Amarillo

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Message Posted: Nov 27, 2012 7:09:08 AM

Mobile 1 is synthetic, Our dealership uses regular Mobile oil, but after the 2nd oil change we asked if we could switch our 2011 Sorento to Mobile 1 and they were more than happy to switch us over (with a price increase of course) my goodness. . I would NEVER go back to dino juice!!!! We have on 05 Silverado that has been a Mobile 1 user her whole life. The engine runs smoother, starts up and gets to temp faster.
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outlaw329
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Message Posted: Nov 27, 2012 1:09:58 AM

No
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the1roadhog
Champion Author Atlanta

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Message Posted: Nov 26, 2012 7:46:11 AM

Consistency of changes is key.
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GLM4205
Champion Author Toledo

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Message Posted: Nov 26, 2012 5:51:27 AM

As long as it is clean your engine will perform well.
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IAMCANADIAN73
Champion Author Ontario

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Message Posted: Nov 24, 2012 8:45:05 AM

Nope
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IAMCANADIAN73
Champion Author Ontario

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Message Posted: Nov 24, 2012 8:44:56 AM

No
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dontuknowOH
Champion Author Ohio

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Message Posted: Nov 24, 2012 8:41:05 AM

Every 5000 or less Summer,every 3000 for Winter always changed after engine has run highway hot normal.Premium non synthetic, no problems ever.
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RAV4CityGuy
Rookie Author Calgary

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Message Posted: Nov 24, 2012 1:31:23 AM

I strictly use synthetic oil from day one. Engine performs better and lasts longer.
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Houckster
Champion Author Atlanta

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Message Posted: Nov 23, 2012 9:17:27 PM

JRFERRARI writes: Mobile 1 is synthetic.
_____
Some Mobil 1 European formulas are synthetic lubricants because in Europe, the term "synthetic" means something. In the US, it has no technical standards associated with it. Therefore just about anything can be termed "synthetic". Estimates I've see indicate that Mobil 1 is usually more than 50% Group III petroleum. True synthetics are made by Amsoil (Signature line), Redline and Synlube.

Neither Castrol nor Pennzoil makes a true synthetic lube either.
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DanFMA
Champion Author Massachusetts

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Message Posted: Nov 22, 2012 5:43:41 AM

Change every 3000 miles.
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jrferrari
All-Star Author Orlando

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Message Posted: Nov 11, 2012 1:42:28 PM

Mobile 1 is synthetic. I used to change my oil ever 3K miles with dino juice (non-synthetic oil) but then I switched to synthetic (Mobile 1 or other brands) and would change it every 10K. That was with a preious car.

The oil requirements for my new car almost require it to be synthetic and it recommends changing every 7500 miles.

Which I think is good.
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frugalshopper
Veteran Author Syracuse

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Message Posted: Nov 11, 2012 10:38:20 AM

We usually change our oil every 3000 miles.
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lissyking
Veteran Author Miami

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Message Posted: Nov 11, 2012 12:39:26 AM

not sure
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jenksjr
Champion Author Washington

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Message Posted: Nov 11, 2012 12:01:31 AM

Synthetic will ensure you have good lubrication when you start you engine on cold mornings. That's when the engine is vulnerable to damage due to poor engine lubrication.
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playtimeCLE
Champion Author Cleveland

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Message Posted: Nov 10, 2012 9:48:04 PM

I don't know of a better oil the mobil 1.
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73amx
Champion Author Allentown

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Message Posted: Nov 10, 2012 10:59:36 AM

you shouldn't have a problem
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13Octane
Champion Author Tucson

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Message Posted: Nov 5, 2012 5:27:05 PM

who really knows.
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MertieMan
Champion Author Lexington

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Message Posted: Oct 23, 2012 10:20:42 AM

It will make it run better now that you have changed it. My car has synthetic oil in it that is supposed to stay in 10,000 miles.
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WEPSMAN
Champion Author South Dakota

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Message Posted: Oct 23, 2012 9:54:43 AM

Should not be any problem.
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lyanMI
Champion Author Detroit

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Message Posted: Oct 22, 2012 10:27:21 AM

Thank you all for the inputs.
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DucatiRider
Rookie Author Maryland

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Message Posted: Oct 3, 2012 9:49:37 AM

Synthetic is always better, and you can switch between and mix oils all you want, it does not matter.
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cheapmonkee
Champion Author Portland

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Message Posted: Sep 29, 2012 11:55:54 PM

Mobil has a rebate promotion going on right now for the DIY. My local Bi-Mart has it on special for $25 for a 5 quart jug. $13 after MIR

PROMOTION
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