Apr 21, 2025 · I was looking at GM L87 Engine recall and part of the solution to prevent future engine failure is to change all engines to 0w40 instead of 0w20. ***...

Oct 5, 2024 · 0w’s are fine, but built with more VII, and thinner base stock, the oil is more likely to shear out of grade as the VII break down. Also higher % of VII, means less % of the other ingredients (base …

Jun 8, 2002 · If the OM recommends 0W-8, then going up a grade to 0W-16 should give some extra engine protection. It could use 0W-20 too without worry. Engines that spec 0W-8 and 0W-16 …

Jul 14, 2020 · Switching from Energy Conserving 0W-20 to Energy Conserving 5w30 is incomsequential. Switching to a 5w30 (or 0W-40/5W-40) with a 3.5+ HTHS will give you some added wear protection …

Dec 1, 2014 · From what I have found, that's an unusual oil. I'll contact them this week to ask more about it, but I am curious about the "theoretical" differences between these three grades of oils (0W …

Jan 16, 2026 · BobIsTheOilGuy Thinking about buying a new vehicle? Do you own a vehicle and would like to share your experiences?

Jun 8, 2002 · But a 0w-20 will be farther from the limit of the range compared to 0w-40 that's gonna be closer to the limit since they struggle more to meet the blend requirements.

Dec 29, 2010 · Toyota 0w-20 is made by Mobil 1, as specified by Toyota Requirements. FWIK....it's not the same as Mobil 1, 0w-20. What about this other synthetic that people rave about....Royal Purple. …

Jan 4, 2024 · Similar threads Amsoil Signature Series 0w-20 rstcso Jun 13, 2025 Virgin Oil Analysis - PCMO/HDEO 2 3 Replies 50 Views 5K Dec 27, 2025

Aug 11, 2005 · Developing the engine with 0W-20 will allow them to just change the recommended grade for this engine to the thinner grade without any further validation testing.