“The viscosity of a lot of the differential fluids has really gone down, because when you reduce the viscosity or how thick it is then you get better gas mileage,” said Larsen.
Keeping that old car? Avoid costly repairs
Changing fluids makes biggest difference
Published On: May 16 2011 03:32:37 PM EDT Updated On: Jul 25 2013 12:49:25 PM EDT
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