Poor Gas Milage
#1
Intermediate
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Poor Gas Milage
Very recently I have been getting very poor gas milage. I used to have at least 300 miles by the time i had 1/4 of a tank, now I am lucky to have 200 by the time i have 1/4 of a tank. I can't figure it out, my tires are inflated properly, ive checked my IMRC, do ya think my injectors are dirty? I always use 93 octane. Any suggestions are greatly appreciated!
#4
SOLD: 03 SSM CLS Auto
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Using quality gas is probably the one thing that can increase gas mileage. Using at least 91 octane from Chevron or Shell would probably be my choice. You can also try putting a can of Seafoam or a bottle of Techron with your next fill up. That will help clean out the injectors of carbon build up. Other than that, using 5w20 oil, which is already recommended from the factory. Taking that lead weight off the bottom of your foot will also result in better gas mileage.
#7
Senior Moderator
Also try different brands of fuel. And look for gas stations that dont use 10% ethanol
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#9
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Join Date: Jul 2006
Location: Ramsey, NJ / Ithaca, NY
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Originally Posted by fsttyms1
Also try different brands of fuel. And look for gas stations that dont use 10% ethanol
This past tank i tried Citgo instead of Valero and my mileage dropped like a stone
Changing your air filter or using a bottle of seafoam might help as well
#11
SOLD: 03 SSM CLS Auto
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Originally Posted by Tabasco
how much seafoam should i use and should i do it on a full tank? is 1/2 bottom enough on a full tank?
#12
So is 1/2 with oil and 1/2 in tank okay? I see a lot of people add some through the pvc pipe also but i dont want to bother.
1 - Add 1/2 can to oil and 1/2 to gas
2 - Let it set for 10 mins
3 - Start car and drive around block
4 - Change oil within 100 miles.
Is that okay? and is it okay if I skip the pvc part?
1 - Add 1/2 can to oil and 1/2 to gas
2 - Let it set for 10 mins
3 - Start car and drive around block
4 - Change oil within 100 miles.
Is that okay? and is it okay if I skip the pvc part?
#13
SOLD: 03 SSM CLS Auto
iTrader: (2)
Originally Posted by Tabasco
So is 1/2 with oil and 1/2 in tank okay? I see a lot of people add some through the pvc pipe also but i dont want to bother.
1 - Add 1/2 can to oil and 1/2 to gas
2 - Let it set for 10 mins
3 - Start car and drive around block
4 - Change oil within 100 miles.
Is that okay? and is it okay if I skip the pvc part?
1 - Add 1/2 can to oil and 1/2 to gas
2 - Let it set for 10 mins
3 - Start car and drive around block
4 - Change oil within 100 miles.
Is that okay? and is it okay if I skip the pvc part?
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