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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Synthetic or Mineral Engine Oil for 2 Strokes?
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[QUOTE="jaguar, post: 1468617, member: 19340"] [B]Which 2 stroke engine oils are the most slippery?[/B] I had an idea to test synthetic vs mineral engine oil. By “mineral” I mean refined petroleum oil. I know that synthetics are thicker (and with less impurities) than mineral oil which is what allows them to be used at a thinner ratio. So I thought that maybe synthetics were also slicker. So I removed the cylinder and piston from my 100cc 2 stroke and tested how much grams pressure is needed to push the piston/rings thru the cylinder with different engine oils smeared onto the cylinder. The best oil was an ester type synthetic, the highest grade refined oil required 10% more pressure, the low grade refined oil required 16% more. So the synthetic won but not by huge margins. Reading up on oils I found one sight that said synthetics actually lagged behind the most refined petroleum oils in lubricity and needed additives to make them slicker. That is surprising to me. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Synthetic or Mineral Engine Oil for 2 Strokes?
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