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Author Topic: Have you ever installed a fuel-saving device? Back to Topics
windrifter

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Message Posted: Feb 11, 2011 12:45:32 PM

Years ago, when gas was still cheap, my dad installed a gasoline pre-heater which used the heat from the engine coolant to preheat the fuel. (I'm sure it voided any warranty on his engine) He noticed some improvement, but it wasn't worth the money.
What's your experience?
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Mikeoids
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Message Posted: Dec 13, 2014 2:55:54 PM

no
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John_Doe
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Message Posted: Dec 12, 2014 1:55:37 AM

no
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JohnCur
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Message Posted: Dec 12, 2014 12:36:33 AM

no
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redfish67
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Message Posted: Dec 11, 2014 1:21:30 PM

no
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carinthuist
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Message Posted: Dec 11, 2014 11:05:55 AM

no
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John_Doe
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Message Posted: Dec 11, 2014 12:33:40 AM

no
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luvmyburgi
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Message Posted: Dec 10, 2014 9:27:47 PM

No
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redfish67
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Message Posted: Dec 10, 2014 9:56:14 AM

no
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JoeKing
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Message Posted: Dec 10, 2014 5:05:46 AM

no
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Birkut
All-Star Author Quebec City

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Message Posted: Dec 9, 2014 7:18:50 PM

No, in most cases it is simply a scam.
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twt
Champion Author Virginia Beach

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Message Posted: Dec 9, 2014 4:22:48 PM

No, I never have installed one.
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Boyrr
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Message Posted: Dec 9, 2014 1:23:59 PM

nope
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Jackson126
All-Star Author Virginia

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Message Posted: Dec 9, 2014 5:26:17 AM

no
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John_Doe
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Message Posted: Dec 9, 2014 12:52:59 AM

no
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dontuknowOH
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Message Posted: Dec 8, 2014 9:59:43 PM

I believe that I mentioned a while back that I had, in addition to insulating my heater supply hoses(both). I later made a small blanket insulated shield/blanket cover for the coolant heat sensor housing.

The outer housing is exposed to cold wind chill blasts of winter temperatures coming into the engine compartment on a cold-start drive-away. Electric coolant fans(OFF) but frigid blasts present under-hood.

Didn't alter any of the stock OEM devices in any way, just blocked the frigid air from contacting the outer housing where the sensor is inserted, blocked the sensor also from the air contact. Blocked/insulated the housing.

My vehicle had always not shifted into top gearing on a average Winter morning >>> Winter drive-away reaching highway speed, it stayed stuck in 3rd with higher engine rpms for up to 3 miles. Dealer tech said >> it was designed that way/OK......

With the shield, and my driving habits it now shifts much sooner into o-drive with no problems, and I don't hammer down the Go pedal on a cold engine warming-up.

I believe the break-over coolant temp. point reaching that sensor must be 160... 166 F degrees in order for the ECM to allow my tranny to shift to high gear. It does much sooner now, saving fuel and more convenient, still ambient temps, really colder days will try to delay any total up-shift(single digit mornings). That's expected, BRrrrrr.... but better fuel saving performance.
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GasMiser718
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Message Posted: Dec 8, 2014 2:14:20 PM

No
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dontuknowOH
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Message Posted: Dec 5, 2014 11:44:26 AM

Yes, DIYed a few, their still in use working, relative now owns one of the older vehicles I parted with. He wanted the engine/tranny/9" tall cog rear-end 3.00:1 and the heavy springs. I gave the whole vehicle to Him (drivable) 78K original miles, but 22 MPG. tops.

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HideMKE
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Message Posted: Dec 5, 2014 11:20:08 AM

no
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contiki
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Message Posted: Dec 5, 2014 6:14:26 AM

Never......
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GLM4205
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Message Posted: Dec 5, 2014 6:04:08 AM

No
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pataka006
Rookie Author Utah

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Message Posted: Dec 4, 2014 4:02:17 PM

I have installed cold air intakes. It helps with fuel economy and hp. The intake was more for hp than fuel economy.
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dontuknowOH
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Message Posted: Dec 4, 2014 2:42:33 PM

We have owned three vehicles with Sun roofs over the past years. I thought I would install a solar panel over the one vehicle's Sun roof since I seldom use it anymore.

Keeping my battery always peaked on capacity would lower that vehicle's alternator HP draw amp load, and should result as a fuel cost improvement.

The panel's free energy source would act as a booster to relieve some of the energy needed to propel Our vehicle >>> Less engine HP. used for charging/balancing the electrical system but more HP. delivered to the drivetrain as a mileage improvement.

I have two small S.. panels in use now for minor electrical auto memory drain/balance to their batteries, still working daily over(about 6 year period).
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Mahalo5
Sophomore Author Philadelphia

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Message Posted: Dec 4, 2014 10:01:18 AM

Only thing I ever used was a K&N air filter...believe it or not it does work...more pickup/torque & better fuel economy
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PaylessKY
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Message Posted: Dec 3, 2014 10:20:14 AM

No
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Mikeyy1960
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Message Posted: Nov 29, 2014 2:45:02 PM

not worth the extra cost.
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redfish67
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Message Posted: Nov 29, 2014 2:28:27 PM

nope they don't work
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GasMiser718
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Message Posted: Nov 29, 2014 12:16:13 PM

No
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contiki
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Message Posted: Nov 19, 2014 7:32:50 AM

no............
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GLM4205
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Message Posted: Nov 19, 2014 5:42:12 AM

No
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maxgp
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Message Posted: Nov 17, 2014 5:59:47 PM

Not on purpose, 99 Pontiac GP added a cold air intake, PLOG, and a 3" down pipe. Fuel economy prior was about 27.5 on the highway. After all this was added it averages about 31.5 and have had a high of 33 on the highway. The parts where put on to squeeze more HP out of the engine.
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GasMiser718
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Message Posted: Nov 16, 2014 9:07:18 AM

No
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dontuknowOH
Champion Author Ohio

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Message Posted: Nov 16, 2014 5:40:13 AM

Right foot school.... **** trained.
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Tucsonhomes
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Message Posted: Nov 15, 2014 12:48:03 PM

Lighter foot
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BCNU
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Message Posted: Nov 15, 2014 12:30:37 AM

no
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FrankLee1
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Message Posted: Nov 14, 2014 11:45:11 PM

Yes.
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PaylessKY
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Message Posted: Nov 14, 2014 7:59:00 PM

No
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redfish67
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Message Posted: Nov 14, 2014 9:56:35 AM

no
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Jackson126
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Message Posted: Nov 14, 2014 6:56:38 AM

no
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RalphHightower
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Message Posted: Nov 14, 2014 6:24:36 AM

no
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Boyrr
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Message Posted: Nov 14, 2014 6:20:40 AM

it's called my foot
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cv
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Message Posted: Nov 14, 2014 6:11:38 AM

No, and no plans to do so.
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dontuknowOH
Champion Author Ohio

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Message Posted: Nov 14, 2014 3:25:59 AM

Block heaters work but shift the energy costs to another source.
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krazkar
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Message Posted: Nov 13, 2014 8:31:14 PM

no
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PaylessKY
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Message Posted: Nov 13, 2014 8:10:07 PM

No
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RealtorJeff
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Message Posted: Nov 9, 2014 7:54:24 PM

No and most likely will not.
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one800rv
Rookie Author Florida

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Message Posted: Nov 9, 2014 1:38:32 PM

not yet. waiting for one that actually works before installing one.
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dontuknowOH
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Message Posted: Nov 9, 2014 10:58:44 AM

Yes, back in the early "80's" I insulated my vehicles heater coolant supply hoses. A van, a truck, lately others. The bigger benefit came doing the older vehicles that had manual operation large cooling radiator fans.

Fans that were propelled constant when the engine is operating, then even with the thermo saver clutch fans later on.

The benefit was noticed first by better, quicker heater BTU output at all vents in the cabin area. Better when the outer temps dropped into the teens and low 20's and lower. Gas then was below a $1.00 a gal.

I didn't pay much attention about fuel savings at $.72 per gal. and was driving all V/8 engines then. My second vehicle DIYed showed a fuel savings by warming quicker on cold morning starts and then Winter restarts also. They both had E...temp gauges.

Some drivers (old school)in areas of severe cold used a cardboard radiator block during the bitter months of winter, that takes carful monitoring of the engine temps when working those work trucks hard preventing(over-heat problems) if forgotten.

Even vehicles with electric cooling fans still off, still have very cold blasts of frigid air movement entering the engine compartment on cold drive-offs, which hamper the engine trying to reach normal designed operational temps,(warm cabin/warmer under-hood mechanics for economy!

Spraying chrome finish paint coating those hoses might help, I used Heavy grilling foil to reflect the radiating heat back to the heated liquid flow, then used home water-pipe foam type insulation as an outer wrap coating, for the convection loss diverted, then taped/wire tied for the finish, A DIY event..... The cost was minor
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contiki
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Message Posted: Nov 9, 2014 8:15:35 AM

Never........
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John_Doe
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Message Posted: Nov 9, 2014 6:29:27 AM

no
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contiki
Champion Author Ontario

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Message Posted: Nov 6, 2014 6:41:28 AM

never.....
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GasMiser718
Champion Author Detroit

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Message Posted: Nov 5, 2014 1:35:37 PM

No
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