DarkLight
Senior Member
- Joined
- Apr 21, 2016
- Threads
- 13
- Messages
- 606
- Reaction score
- 563
- Location
- LA
- Vehicle(s)
- Civic-2016 LX 6MT
You seriously need to stop giving people bad advice. You have no idea what you are talking about, and every post you have made has merely been about validating your own opinion rather than facilitating useful discussion.HTO (heat transfer oil) spec, designed by Honda and XOM. Steve, your N/A 2.0 is probably fine with any 5/30 if you look at that link and the first .pdf XOM explains the benefits of 0/20 but stops short of comparing it to a HTO spec because 0/20 gives up protection for increased efficiency of 1.5% so there you have it directly from the mfg. Oil like tires is all about trade-offs.
The reason why a 0W-20 is the spec is because the oil pump is overdriven by the crankshaft at 1.6 times the engine speed. This is done to allow the VTEC/VTC mechanisms to operate with a sufficient amount of oil pressure, since the oil passages are small, with some being only 0.05 inches in diameter.
Bottom line: Using a heavier weight oil will increase the risk of cavitation! Especially with dual VTC and VTEC.
Personally I don't care what you put in your 1.5, however, nothing but 0W-20 should ever be used in the new K20!
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