Not Logged In Log In   Sign Up   Points Leaders
Follow Us    7:52 PM

Message Forum - Read Message

Category: Fuel Economy > Topics Add to favorite topics   Post new topicPost New Topic
Author Topic: does Tune-up = improved fuel efficiency? Back to Topics
lookupthesky

Veteran Author
New Jersey

Posts:347
Points:197,695
Joined:Jan 2011
Message Posted: Jun 13, 2011 12:59:46 PM

I am considering getting a tune-up: changing filters, spark plugs, flush radiator/coolant, and oil change.
Would my car get from 27mpg to 31mpg+?
REPLIES (newest first) Post a Reply
Profile Pic
forestghost07
Champion Author Miami

Posts:1,025
Points:17,635
Joined:Apr 2013
Message Posted: May 22, 2013 12:13:51 AM

of course it does :)

as for your MPG, what's your car rated at by the mfr?
Profile Pic
GLM4205
Champion Author Toledo

Posts:6,341
Points:1,328,735
Joined:Dec 2010
Message Posted: May 18, 2013 6:19:52 PM

Sometimes it does.
Profile Pic
63pioneer
Champion Author Texas

Posts:29,235
Points:658,400
Joined:Feb 2012
Message Posted: May 13, 2013 5:07:33 AM

It should unless you have other problems with the car!
Profile Pic
Wanda127
Champion Author Florida

Posts:4,977
Points:1,513,385
Joined:May 2010
Message Posted: May 12, 2013 11:04:39 PM

I think it does. I'm getting ready to do one on my 2006 HHR now because the mpg has gone down & it has 106K miles on it. They recommend it be done around 104k.
Profile Pic
Wrench45840
Rookie Author Ohio

Posts:98
Points:30,665
Joined:Sep 2012
Message Posted: May 12, 2013 9:13:24 PM

I agree with davisadm but what has affect on the modern car is engine temperature and exhaust Temperature. So I replace the thermostat every 2 years or so and O2 sensors about every 100K just because they don't seem to set hard codes when they go bad except the heater circuit and they control how rich or lean to make the fuel mixture based on Exhaust temperature. Sparkplugs and wires 50-75K fuel filter every year air filter every 30K.
Profile Pic
davisadm
Champion Author Los Angeles

Posts:3,079
Points:1,000,850
Joined:Dec 2011
Message Posted: May 12, 2013 4:50:52 PM

"Would my car get from 27mpg to 31mpg+?"
Depends how long you have let regular required maintenance go. If you have really let it go yes. Radiator flush would have little impact on mileage, same with oil changes (but it would destroy your engine faster). Filters, plugs, wires cap & rotor, O2 sensors have the most impact.
Profile Pic
smugutu1234
Champion Author Tallahassee

Posts:2,310
Points:549,620
Joined:Feb 2013
Message Posted: May 11, 2013 9:34:50 AM

Sometimes it does.
Profile Pic
OilerFan
Champion Author Tulsa

Posts:16,398
Points:2,924,785
Joined:Aug 2005
Message Posted: May 11, 2013 8:55:37 AM

Yes, it does.
Profile Pic
carinthuist
Champion Author San Francisco

Posts:5,095
Points:866,000
Joined:Mar 2012
Message Posted: May 10, 2013 5:19:16 PM

Yes
Profile Pic
kellyoneal
Champion Author Louisville

Posts:3,102
Points:1,224,590
Joined:Mar 2011
Message Posted: May 10, 2013 2:46:56 PM

yes
Profile Pic
weddy11
Champion Author Phoenix

Posts:4,416
Points:1,033,200
Joined:Dec 2011
Message Posted: May 9, 2013 9:56:32 AM

I seriously doubt it would improve that much.
Profile Pic
IAMCANADIAN73
Champion Author Ontario

Posts:4,971
Points:1,717,000
Joined:Apr 2008
Message Posted: May 9, 2013 8:41:54 AM

For sure
Profile Pic
IAMCANADIAN73
Champion Author Ontario

Posts:4,971
Points:1,717,000
Joined:Apr 2008
Message Posted: May 9, 2013 8:41:45 AM

Yes
Profile Pic
mybigtruck
Champion Author San Jose

Posts:1,170
Points:712,510
Joined:Oct 2009
Message Posted: May 7, 2013 4:00:20 PM

It depends... if they're all trashed, sure you might get some improvement back to where the car was performing when it was new. If they're all in good condition, you probably won't notice anything different other than lightening your wallet.

[Edited by: mybigtruck at 5/7/2013 4:02:11 PM EST]
Profile Pic
carinthuist
Champion Author San Francisco

Posts:5,095
Points:866,000
Joined:Mar 2012
Message Posted: May 7, 2013 1:02:05 PM

Yes
Profile Pic
sks1586
Champion Author New Jersey

Posts:3,305
Points:604,245
Joined:Mar 2013
Message Posted: May 7, 2013 12:49:36 PM

Thanks a million for the question & the great comments (even though random contrasting @ times)
Profile Pic
Houckster
Champion Author Atlanta

Posts:11,107
Points:768,535
Joined:Sep 2003
Message Posted: May 7, 2013 8:25:26 AM

Modern cars don't need tune-ups like the cars once did. We can thank auto emissions standards for this. Poorly tuned cars pollute and to comply with the feds, the OEMs had to upgrade just about everything. My brother, for example, just changed the plugs on his wife's car and they had about 200K on them. Most modern cars can go about 100K before any substantial maintenance is required. In contrast when I got my first car, a 1966 Mustang, it really needed a tune-up after 10K.

With regard to the LOOKUPTHESKY's question about increased mileage, the answer must be a definite maybe. A tune-up will RESTORE lost mileage. It will NOT give one more mileage over that which it got when new.

[Edited by: Houckster at 5/7/2013 8:28:22 AM EST]
Profile Pic
giwan
Champion Author Michigan

Posts:1,636
Points:220,495
Joined:Aug 2009
Message Posted: May 7, 2013 12:15:18 AM

The definition and need of a tune up has changed greatly. I highly doubt those changes will show you any effect
Profile Pic
fistr
Rookie Author Lansing

Posts:8
Points:3,395
Joined:Jul 2012
Message Posted: Jul 15, 2012 11:35:38 AM

If needed a tune up will increase fuel economy
Profile Pic
john4122
Rookie Author Ohio

Posts:70
Points:2,365
Joined:May 2011
Message Posted: Jul 15, 2012 6:46:12 AM

It sure does
Profile Pic
BlueberryFocus
All-Star Author Rochester

Posts:559
Points:173,980
Joined:Feb 2012
Message Posted: Jul 14, 2012 12:20:22 AM

A properly functioning vehicle will always run more efficiently, so if something is wrong get it fixed. lol
Profile Pic
2amy
Champion Author Fresno

Posts:1,857
Points:708,815
Joined:Feb 2011
Message Posted: Jul 13, 2012 8:11:44 PM

Personally it all depends on how bad the car needs a tune up. Just to get one to save fuel IMO is not going to get your moneys worth. You could spend hundreds of dollars to get your car properly tuned and MAYBE get 1 or 2 mpg better.
Profile Pic
PhilnTX
All-Star Author Dallas

Posts:798
Points:905,990
Joined:Sep 2011
Message Posted: Jul 13, 2012 5:44:03 PM

To the original poster. Your mileage "might" go up. It would completely depend on how you drove the car. If you drove with economy as your goal, the tuneup could potentially raise your fuel economy.
Profile Pic
kxy4fw
Champion Author Denver

Posts:1,252
Points:283,330
Joined:Nov 2011
Message Posted: Jul 13, 2012 9:17:26 AM

yes
Profile Pic
bithehr
Champion Author Atlanta

Posts:4,350
Points:1,010,790
Joined:Mar 2009
Message Posted: Jul 13, 2012 8:32:11 AM

yes
Profile Pic
tattoo666TX
Champion Author Texas

Posts:2,567
Points:344,480
Joined:May 2011
Message Posted: Jul 12, 2012 11:36:01 PM

Maybe. Maybe not. All depends on if the car really needs it or not, and if the car is capable of that kind of mileage.
Profile Pic
PCollen
Sophomore Author Florida

Posts:212
Points:51,130
Joined:Mar 2012
Message Posted: Jul 2, 2012 10:31:08 AM

Can't be determined....if you're now getting 25 - 29 mpg, then perhaps. If you're driving a 62 Cadillac, and getting 10-15 mpg, unlikey. If your car hasn't had a tune up in years, then it will probably make SOME difference.
Profile Pic
cookieluver
Veteran Author Arkansas

Posts:260
Points:970,980
Joined:Nov 2011
Message Posted: Jul 2, 2012 10:17:07 AM

Yes cause my car was missing. Now i hope it start getting better gas mileage.
Profile Pic
kxy4fw
Champion Author Denver

Posts:1,252
Points:283,330
Joined:Nov 2011
Message Posted: Jul 2, 2012 9:46:37 AM

a little
Profile Pic
TheRavenHeart
Veteran Author Chattanooga

Posts:359
Points:43,545
Joined:Apr 2012
Message Posted: Jul 2, 2012 9:31:50 AM

It depends...does your car currently run like a top, or does it misfire on one or more cylinders? From my personal experience, misfiring is easier to detect on a 6 cylinder than it is a 4 cylinder engine. In any case, doing it too often will just waste money, but not doing it often enough is also a waste of money. Check your owner's manual, that is usually the best source for info on maintenance schedules.
Profile Pic
coughlin
Champion Author San Jose

Posts:6,662
Points:1,449,510
Joined:Sep 2009
Message Posted: Jun 22, 2012 8:57:06 PM

Yes.
Profile Pic
carinthuist
Champion Author San Francisco

Posts:5,095
Points:866,000
Joined:Mar 2012
Message Posted: Jun 22, 2012 7:58:05 PM

Yes
Profile Pic
Vin63
Champion Author San Bernardino

Posts:2,781
Points:674,625
Joined:Oct 2007
Message Posted: Jun 22, 2012 10:14:02 AM

A tune up is supposed to help maintain the vehicle's designed efficiency...not increase it.
Profile Pic
OilerFan
Champion Author Tulsa

Posts:16,398
Points:2,924,785
Joined:Aug 2005
Message Posted: Jun 22, 2012 7:28:25 AM

In the past, tuneups worked for me, but it was mainly because the vehicle was in bad need of a tuneup. If a car doesn't need it, I'm not sure getting a tuneup would show that much of a change to notice.
Profile Pic
kxy4fw
Champion Author Denver

Posts:1,252
Points:283,330
Joined:Nov 2011
Message Posted: Jun 22, 2012 6:26:38 AM

I believe so
Profile Pic
W707
Champion Author Pennsylvania

Posts:1,640
Points:546,330
Joined:Sep 2008
Message Posted: Jun 22, 2012 3:17:18 AM

yes tune-ups do help
Profile Pic
cmmattia
Champion Author Long Island

Posts:4,770
Points:994,220
Joined:Mar 2012
Message Posted: Jun 21, 2012 9:48:07 PM

i am no mechanic, but i would have to say yes !!!
Profile Pic
JimBlake56
Veteran Author Akron

Posts:415
Points:108,390
Joined:Oct 2010
Message Posted: Jun 21, 2012 12:33:22 PM

Houckster & Hotrod already said it.

Dirty filters, fouled sparkplugs, any of that can give your car poor MPG. So if that's the case YES it'll improve.

Replacing clean filters and changing sparkplugs too early is just a waste of money because the stuff you're throwing away isn't "used up".
Profile Pic
Houckster
Champion Author Atlanta

Posts:11,107
Points:768,535
Joined:Sep 2003
Message Posted: Jun 13, 2012 8:37:25 AM

It can't hurt? If you spend money needlessly that hurts! A tune-up is not advisable unless there are drivability issues such as poor mileage or a CEL.
Profile Pic
the1roadhog
Champion Author Atlanta

Posts:11,530
Points:2,625,735
Joined:Jun 2007
Message Posted: Jun 13, 2012 8:16:27 AM

It can't hurt.
Profile Pic
BlueberryFocus
All-Star Author Rochester

Posts:559
Points:173,980
Joined:Feb 2012
Message Posted: Jun 12, 2012 8:48:05 PM

yes, a healthy car needs less fuel.
Profile Pic
cpcaviness
Rookie Author Phoenix

Posts:76
Points:37,855
Joined:May 2012
Message Posted: Jun 12, 2012 5:26:09 PM

Yes tune ups generally help with fuel efficiency.
Profile Pic
jodybull
All-Star Author El Paso

Posts:767
Points:140,880
Joined:May 2012
Message Posted: Jun 12, 2012 2:56:05 PM

I agree with HotRod 10. Very logical and sensible!
Profile Pic
HotRod10
Champion Author Wyoming

Posts:3,596
Points:60,835
Joined:Oct 2006
Message Posted: Jun 12, 2012 12:45:49 PM

Like Houckster said, it depends on what mileage it was getting in the past. If you were getting 31mpg a year ago and getting 27 now, I would say you should be able to get it back to 31, but if it's never gotten better than 29, you're unlikely to improve on that.
Profile Pic
Minges
Veteran Author Ohio

Posts:311
Points:251,395
Joined:Feb 2007
Message Posted: Jun 8, 2012 7:43:02 PM

Yes
Profile Pic
Houckster
Champion Author Atlanta

Posts:11,107
Points:768,535
Joined:Sep 2003
Message Posted: Jun 8, 2012 2:59:18 PM

A tune-up will restore LOST mileage due to things like spark plugs wearing out but if they're doing their job OK you will not get ANY mileage increase over what the car delivered when it was new.

[Edited by: Houckster at 6/8/2012 3:00:48 PM EST]
Profile Pic
vikings80
All-Star Author South Dakota

Posts:781
Points:110,065
Joined:Aug 2008
Message Posted: Jun 8, 2012 9:14:14 AM

yes
Profile Pic
grunt88
Rookie Author Florida

Posts:69
Points:72,080
Joined:Mar 2012
Message Posted: May 7, 2012 11:30:19 PM

yes
Profile Pic
jorobins538
Champion Author Chicago

Posts:5,463
Points:874,380
Joined:Sep 2009
Message Posted: Apr 23, 2012 2:34:15 PM

probably couldn't hurt - but you don't have to do it every year like we used to
Profile Pic
Titanic1985
Champion Author South Carolina

Posts:9,858
Points:838,495
Joined:Dec 2010
Message Posted: Apr 22, 2012 10:00:00 PM

Hello lookupthesky. GB responses have fairly well covered the subject. I however have a questions which would put more relevance to your question. What is the year, make and model of your vehicle? How many cylinders does it have? How many miles are on it? Have some "tune-up" items such as replacing the Air Filter (a big waste of gas if filthy) been done on an as needed basis rather than a scheduled one based on time or mileage? I live on dirt roads and the maintenance schedule does not entirely apply to my usage. Do you drive in heavy traffic?

What I'm getting at is yes, tune-ups do improve fuel efficiency, but by how much is what is in question.

By the way, oil and oil filter changes and flushing of the radiator are considered routine maintenance rather than components of a tune-up.
Post a reply Back to Topics