Bad MPG? 2002 SS
#1
Bad MPG? 2002 SS
Low mile (90k) 2002 SS falling short of the advertised MPG.
19 city 28 city is what is advertised, but Im only getting 15MPG with mixed city/highway driving.
It has always ran 93octane.
I drive conservatively (never over 2500rpm, try to stay under 2000rpm), and only occasionally give more than half throttle.
SS FI hoodscoop
SLP Lid
Kooks longtube headers
Offroad Y-pipe
3" Cutout in Y-pipe
(Stock muffler, No cats)
Its literally the cleanest LS1 ive ever seen. The engine bay is showroom quality, and it looks like the block has been regularly cleaned and polished.
I need troubleshooting help on the low MPGs...
19 city 28 city is what is advertised, but Im only getting 15MPG with mixed city/highway driving.
It has always ran 93octane.
I drive conservatively (never over 2500rpm, try to stay under 2000rpm), and only occasionally give more than half throttle.
SS FI hoodscoop
SLP Lid
Kooks longtube headers
Offroad Y-pipe
3" Cutout in Y-pipe
(Stock muffler, No cats)
Its literally the cleanest LS1 ive ever seen. The engine bay is showroom quality, and it looks like the block has been regularly cleaned and polished.
I need troubleshooting help on the low MPGs...
#3
Save the manuals!
iTrader: (5)
Who advertised that?
I have gotten 29 mpg on a stock car, traveling 55 on a flat interstate right after a carbon cleaning and with new fuel injectors. It gets worse from there.
If you add hills and travel over 55 mph, the mileage gets much worse. At 75+ mph, I've never beat 24 mpg on the highway. 15 mpg for mixed usage on fast highways is pretty good - IMO. For some city driving, (in a real big city) I get below 12 mpg.
The best way to really tell if something is wrong is to fill up and go for a highway drive at 55 mph. Then fill up and calculate your mileage. That will give you a good benchmark to measure against. High speed driving on the highway and mixed driving doesn't give you very useful data points.
I have gotten 29 mpg on a stock car, traveling 55 on a flat interstate right after a carbon cleaning and with new fuel injectors. It gets worse from there.
If you add hills and travel over 55 mph, the mileage gets much worse. At 75+ mph, I've never beat 24 mpg on the highway. 15 mpg for mixed usage on fast highways is pretty good - IMO. For some city driving, (in a real big city) I get below 12 mpg.
The best way to really tell if something is wrong is to fill up and go for a highway drive at 55 mph. Then fill up and calculate your mileage. That will give you a good benchmark to measure against. High speed driving on the highway and mixed driving doesn't give you very useful data points.
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#9
TECH Addict
iTrader: (31)
I've put Walmart gas in my daily a few times and dropped 3 MPG. This was just regular 87. Didn't change my driving style or where I drive. Next fill up with Shell or Chevron/Exxon 87 and instantly get my normal gas mileage. This wasn't just once...It's EVERY time I've gotten garbage. Never again I'd done the same test with my TA with 93 octane and same ****, so its not just 1 of my cars.