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BAD Gas Mileage 01 OBW
Posted 11 February 2006 - 06:46 PM
I drove 270 miles using 12 gallons, which average out to be 22.5 MPG. Most of it was highway. Right now i've got just over 100 miles, and at 1/2 a tank.
My wife normally drives it, she's been saying for that last month or so, that it's been bad. She doesn't drive highway, so I dismissed it, till I had to buy the gas for a change...
I just changed the Air Filter today, I plan on changing the plugs and wires soon. Need to replace the driver's side valve cover gasket, as it's leaking now...
I've not gotten any CEL light, etc. It passed NYS Inspection in January, no issues, they now scan the car for thrown codes, etc... Anybody got any advice, other than what I've done, or plan to do...
Car is an 01 OBW, 2.5l with almost 85k. I run good 5W30 with a WIX filter... Change the oil every 3 months irregardless of mileage. Most of the time it's about 2-2.5k at changes...
Thanks in advance for all those who respond...
Posted 11 February 2006 - 07:26 PM
use NGK plugs only. be sure they are gapped properly.
check your tire pressure.
next time you buy tires get the skinniest size tire you can get. typically you can step down at least one width in tire size (or one up). if you do high speed cornering or drive aggressive then don't get thinner tires as they won't perform as well (but you wo'nt notice a difference for daily driver typical driving).
02 sensor, but i've never had any mpg increase from changing these, but everyone else says it can help as do the advertisers (but i certainly don't trust them!).
what kind of driving you do makes a difference as well. more time on the brake and go pedal equals less gas mileage.
make sure you don't have any unnecessary weight in the car that you're carrying around. i don't claim it's accurate but i read before that on average (whatever that is?) every 100 pounds of extra weight can reduce gas mileage by 1 mpg. for all highway miles extra weight doesn't make any difference though. i would see zero difference driving with a loaded car entirely on the highway then unloading and driving home empty. but for more stop and go circumstances possibly.
Posted 11 February 2006 - 09:07 PM
Posted 12 February 2006 - 02:04 AM
Posted 12 February 2006 - 07:44 AM
Posted 12 February 2006 - 11:47 AM
Don't overlook the brakes.
Amen to that. Clean the guide pin (top of the caliper) and the bushing (at the bottom) thoroughly, the small rubber boots too (there are 4 of them). Then coat with high temperature brake grease.
I was shocked that the bottom bushings were bone dry! Brakes worked fine, but I think they had been dragging very slightly for a long time. Could actually feel the difference after changing the pads and doing the maintenance.
Am hoping this shows up in better mpg too.
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