Quote:
Originally Posted by Davo53209@yahoo.com
My question to everyone is this; would [reduced] friction add to fuel economy?
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Simple answer: yes.
This is a focus on modern engine design in order to improve efficiency. Mazda's claim for the Skyactiv-D engine is that they reduced friction by 30%
Mazda Engines - Skyactiv-G Gasoline Engines | Mazda Canada
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The SKYACTIV-G engine reduces friction inside the engine by 30%, improves oil pump efficiency by 74%, improves water pump efficiency by 31% and reduces friction in pistons, rods and crank shaft by 25%.
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The Skyactiv 2.0L uses 15% less fuel than the old 2.0L Mazda engine. Partially due to friction, but it is also direct injected, higher compression, and has improved VVT. So, who knows how much is due to friction. Also, I'm sure significant design changes were made to reduce friction rather than just a surface finish.
So, can it help? Yes. Is this particular process worth doing for improving fuel economy and an existing engine? Very unlikely, unless it is cheap and you are rebuilding the engine anyways. And the prices you posted don't look cheap to me...