Synthetic Oil - Toyota Yaris Forums - Ultimate Yaris Enthusiast Site

04-11-2007, 09:53 AM

#27

nsmitchell

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Quote:

Originally Posted by Kaotic Lazagna

yup, getting better gas mileage with the 5W-20 synthetic oil.

I did some research on 5W-20 and 0W-20 and found that it will give better mileage, but may cause more engine wear over time compared with using 5W-30 or 0W-30. This was all discussed in a thread about the Toyota 5W-20 TSB. This is due to the size of the suspended particles staying the same but the film thickness is decreased. I'm sticking with 0W-30 and Napa Gold filters. Maybe even a mixture of the two weights. hmmm....

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