28mpg to 45mpg city/highway - Toyota Yaris Forums

Red Horse · 09-04-2012, 02:32 PM

I change my spark plugs and my mpg increase, I think the oem japan spark plug suck, cause since I got my car brand new im just getting 28 to 32 mpg and now I replace it with USA denso spark plug from toyota dealer, its a huge jump of mpg 45mpg is like a hybrid now.

Kaotic Lazagna · 09-04-2012, 03:01 PM

Nice, I didn't notice any mpg change after changing mine. In fact, mine dropped a little for a while, then became normal again.

tanof · 09-07-2012, 11:29 PM

What was the condition of the original spark plugs? How many miles did you have? I have 60k, should I change the plugs now?

09-04-2012, 02:32 PM	#1
Red Horse View User's Garage Drives: 2008 Yaris sedan A/T Join Date: Oct 2008 Location: Costa mesa, California Posts: 353	28mpg to 45mpg city/highway I change my spark plugs and my mpg increase, I think the oem japan spark plug suck, cause since I got my car brand new im just getting 28 to 32 mpg and now I replace it with USA denso spark plug from toyota dealer, its a huge jump of mpg 45mpg is like a hybrid now. __________________

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09-04-2012, 03:01 PM	#2
Kaotic Lazagna View User's Garage Drives: '14 GT86, '08 Vitz Join Date: Dec 2006 Location: Central Valley, CA Posts: 9,873	Nice, I didn't notice any mpg change after changing mine. In fact, mine dropped a little for a while, then became normal again.

09-07-2012, 11:29 PM	#3
tanof I've made a post! Drives: 2008 3dr Join Date: Sep 2012 Location: Albuquerque Posts: 1	What was the condition of the original spark plugs? How many miles did you have? I have 60k, should I change the plugs now?