You are here: Forums Hatchbacks Chevrolet Metro/Geo Metro Chevy/Geo Metro Real World MPG

Chevy/Geo Metro Real World MPG

64 messages,  Last post on Aug 06, 2009 at 7:57 PM

You are in the Chevrolet Metro/Geo Metro Forum. Your Host is pf_flyer

What is this discussion about? Chevrolet Metro, Geo Metro, Hatchback

Messages Page 7 of 7 1 2 3 4 5 6 7 Prev Next Last

Go To Msg # Search This Discussion

#55 of 64 The Storm by mrcado Nov 16, 2008 (11:20 am)
I got a '91 Storm I traded for a '77 F-150. It's got the 1.8 and 5 speed. When I get on it (alone) I can get around 38 mpg and when I take it easy, I have gotten over 42. I know there are other things I can do to improve it a little, but I'm happy with what I get since it's hard to get parts for it... Replies to this message: 4_banger (Jul 01, 2009 11:39 am)
#56 of 64 Re: poor mpg's [4_banger] by zaken1 Jul 01, 2009 (4:27 pm)
If the compression is within manufacturer's specs in EVERY cylinder, the fuel and air filters have been replaced, the entire exhaust system is absolutely stock and has no leaks, and there are no modifications to the air intake, the EGR system, the inlet air temperature sensor, or the ignition timing; I would consider that the throttle position sensor may need to be adjusted to a leaner position. This adjustment has a major effect on fuel economy; and the stock setting often becomes unsuitable due to changes in fuel blends, engine condition, and choice of spark plug brands. There is no hard and fast spec for optimizing the throttle position sensor adjustment. The drill is to loosen the two mounting screws and rotate the unit counterclockwise (leaner) in a series of small steps; with a test drive after each adjustment change, until the engine begins to falter, surge, or lose power. Then turn the unit a small amount clockwise until the driveability just returns. See what that does for the gas mileage; and after reading your feedback, I can offer more from that point.
#58 of 64 poor mpg's by 4_banger Jul 01, 2009 (11:39 am)
Replying to: mrcado (Nov 16, 2008 11:20 am) i have a 96 metro 4 cyl. auto. and i can't get over 27 mpg's. i pretty much drive 55mph to work and back with very little in town driving. i thought these cars did better on gas. not that 27mpg is horrible but 35 sounds better any advice. the car only has 60,000 miles on it and is maintianed regularly.
#59 of 64 89 metro by drewkohls Jul 06, 2009 (10:12 am)
i just did the calculations and i got 42 mpg's with 50/50 mix driving. I have no egr valve from the factory? and i have the minimum compression, 155 psi give or take a few, on all 3 cylinders. its a 5 speed. I think if i shift a smidge earlier all the time and coast up to stops more and stay closer to 55 mph i could get that up to about 45 or so, but i only do between 55 and 60 on country highways. sounds good
#60 of 64 89 metro by drewkohls Jul 06, 2009 (10:12 am)
i just did the calculations and i got 42 mpg's with 50/50 mix driving. I have no egr valve from the factory? and i have the minimum compression, 155 psi give or take a few, on all 3 cylinders. its a 5 speed. I think if i shift a smidge earlier all the time and coast up to stops more and stay closer to 55 mph i could get that up to about 45 or so, but i only do between 55 and 60 on country highways. sounds good
#61 of 64 89 metro by drewkohls Jul 06, 2009 (10:10 am)
i just did the calculations and i got 42 mpg's with 50/50 mix driving. I have no egr valve from the factory? and i have the minimum compression, 155 psi give or take a few, on all 3 cylinders. its a 5 speed. I think if i shift a smidge earlier all the time and coast up to stops more and stay closer to 55 mph i could get that up to about 45 or so, but i only do between 55 and 60 on country highways. sounds good
#62 of 64 Geo 1996 by fincenmib Jul 06, 2009 (3:03 pm)
My best mpg on a new engine, 3 cyc. is 50 so far. Just regular gas, nothing special other than platnum plugs. The old engined smoked and was an oil burner and consistantly got 53-57 mpg, go figure! The newer engine goes pretty fast for a 3 banger, it has the power now, but it did lose a few on the mileage.   JB
#64 of 64 Metro Timing by mikell1 Aug 06, 2009 (7:57 pm)
New to the forum. Have a 1998 Chevy Metro 3 cyl. 1.0 liter. Was getting in the mid-40's up until a few months ago when I had to replace the balding tires. About the same time, had to replace the water pump, which required removing the timing belt. Lost about 5 mpg after either the tire replacement or possibly affecting the timing in the water pump replacement (had to remove timing belt). Wondering what others with same engine are timed at and whether I should try and advance timing to regain fuel economy. Or could improved traction of new tires caused this much lost in fuel economy.

Messages Page 7 of 7 1 2 3 4 5 6 7 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Hatchbacks Chevrolet Metro/Geo Metro Chevy/Geo Metro Real World MPG