Bad gas mileage & fuel system cleaners??
07-28-2002, 05:51 PM
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Bad gas mileage & fuel system cleaners??
I've been getting pretty bad mileage lately in my Si (D16). I use to get around 300 miles per tank, but now I can barely push 250 per tank. I'm gonna try a fuel system cleaner, so I was wondering which one out there is the best one? thanks
07-28-2002, 06:11 PM
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a few things to note to see if you have changed it recently
your:
fuel filter (every 50k)
PCV valve (a biggie for gas milelage and only $3)
spark plug gap
spark plugs themselves
spark wires
distributor (clean? not worn out?)
brakes draggin?
compression?
alignment
BG is good for fuel injector cleaner, i never felt a diff with the STP stuff. also a thought, not a suggestion but that stuff you run in your motor before an oil change? and then change your oil haven't had an experience with it but i kno its out there
check all those and see if you have any more problems
for the PCV valve (positive crankcase ventilation valve) its easy to tell if its broken or not... take it off... and shake it.. i fyou can hear something moving.. its good, if u don't... its bad.
your:
fuel filter (every 50k)
PCV valve (a biggie for gas milelage and only $3)
spark plug gap
spark plugs themselves
spark wires
distributor (clean? not worn out?)
brakes draggin?
compression?
alignment
BG is good for fuel injector cleaner, i never felt a diff with the STP stuff. also a thought, not a suggestion but that stuff you run in your motor before an oil change? and then change your oil haven't had an experience with it but i kno its out there
check all those and see if you have any more problems
for the PCV valve (positive crankcase ventilation valve) its easy to tell if its broken or not... take it off... and shake it.. i fyou can hear something moving.. its good, if u don't... its bad.
07-29-2002, 02:41 AM
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It also depends on what you have now.
Intake?
Larger/wider wheels/tires?
How many miles?
Last oil change?
Spark plugs? How old?
Spark plug wires? How old?
Intake?
Larger/wider wheels/tires?
How many miles?
Last oil change?
Spark plugs? How old?
Spark plug wires? How old?
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07-30-2002, 08:27 AM
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My fiance had this problem in her car too (97 4-dr Civic). We ran 2 fill-ups of 93 octane to clean the system and she gets about 300-320 now. She was getting like 260-280.
Try to stay away from additives.
Try to stay away from additives.
07-30-2002, 08:34 AM
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Originally posted by 4-banging
My fiance had this problem in her car too (97 4-dr Civic). We ran 2 fill-ups of 93 octane to clean the system and she gets about 300-320 now. She was getting like 260-280.
Try to stay away from additives.
My fiance had this problem in her car too (97 4-dr Civic). We ran 2 fill-ups of 93 octane to clean the system and she gets about 300-320 now. She was getting like 260-280.
Try to stay away from additives.
07-30-2002, 11:13 AM
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depending on what you are getting at. 93 octane is also more expensive. when i want good gas mileage i want it cuz i spend less on gas...
the intake and exhaust actually improved my gas milage... anyone experiecn ethe same thing?
the intake and exhaust actually improved my gas milage... anyone experiecn ethe same thing?
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