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Ask Mobil Archive -
Gas Mileage
DateQuestionAnswer
08/04/2009
Why Have Some Car Makers Moved from Recommending 5W-30 to 5W-20 or 0W-20 Motor Oil?
I just bought a new 2.4L Toyota Matrix and saw that the recommended oil was 5W-20 or 0W-20. My older Matrix requires 5W-30 and I have always used Mobil 1. What modifications in an engine change the oi...
The main driver for lower viscosity oil recommendations is improved fuel economy. However, if the OEM (original equipment manufacturer) is recommending a lower viscosity, it is safe to assume that the...
12/06/2007
Does 5W-20 Motor Oil Offer Fuel Economy Advantage over 5W-30?
I have a 2003 PT Cruiser with the 2.4-Liter engine. Recently I looked up some research on how to improve gas mileage via driving habits, tire inflation, shutting down the engine for stoplights and coa...
You should probably continue to use the viscosity recommended by the OEM (Original Equipment Manufacturer) which is a 30 grade. We have introduced two products: Mobil 1 0W-20 and 0W-30 Advanced Fuel E...
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