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Old 09-01-2011, 12:48 AM   #1
BennyLava
 
Drives: 1987 Silverado
Join Date: Jan 2010
Location: Texas
Posts: 314
Just wanted to do a a report

My 2009 yaris sedan automatic seems to get about 32-33 MPG city with the air conditioner running. I expect that to slightly increase in the non-summer months when the AC is off. Maybe by a 1 or two miles per gallon. I have not had a chance to test the highway MPG. The car has 40,000 miles on it and has no mods worth mentioning. I run Royal Purple 5w30 engine oil. When the car needs a tune up, I'm going to get those E3 diamond fire spark plugs, cause they claim to reduce emissions and raise gas mileage by 7%. I've seen some tests and they really do reduce emissions.

Last edited by BennyLava; 09-01-2011 at 11:09 PM.
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Old 09-08-2011, 08:16 PM   #2
RETRO
 
Drives: 2008 Yaris Hatchback
Join Date: Jan 2010
Location: Alabama
Posts: 64
Mine is stock and I am getting 41 mpg during the summer running the A/C.You'll loose a few mpg in the winter due to different gas..Drive the car quit trying to do things to better mpg..The best change is your take offs.The $$$ you spent on parts to help fuel mileage that did nothing would buy some gas
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Old 09-08-2011, 09:48 PM   #3
A-Dingo-Ate-My-Baby
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Quote:
Originally Posted by BennyLava View Post
I'm going to get those E3 diamond fire spark plugs, cause they claim to reduce emissions and raise gas mileage by 7%. I've seen some tests and they really do reduce emissions.
E3 actually block the flamefront and if anything will be worse than stock plugs. the combustion chamber
is designed for a normal spark plug and you cannot get magic MPG from a simple plug.

if you could get 7% from a plug the Yaris would already have E3 installed so it would rate higher on
the government MPG ratings and outsell other compacts


snake oil
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