I have not been able to find any 5w-20 oil in stock in my area (in Mobil 1), but can find 5W-30. Interested in opinions regarding using the -30.
Brian
Brian
Ask the same illiterate dealer why the Honda does not recommand 5W-20 for the same engine in Japan.elsensei said:
I've decided to use M1 5-20 though, since I can easily get it and I just want to insure Honda can't come back on my warranty and say "you didn't use the right oil viscosity."
So far, only Honda, DC and Ford recommand 5W-20.Titan said:I'll bet an engine run on SM rated 5-20 will actually show less wear in 200,000 miles than one run on 5-30. I know it ain't what Daddy preached, and it ain't what many relatively non-scientifically inclined mechanics preached, but, it's what the engineers observe.
Not at all. However, it took over a decade for people to accept 5-30 when it first came out. Same reluctance for people to switch as now.lelandstanford said:So far, only Honda, DC and Ford recommand 5W-20.
Are you implying Toyota, GM and other automaker engineers don't see the benefit of 5W-20?
I was refering to auto engineers not general public/consumers (if that's your definition of "people").Titan said:Not at all. However, it took over a decade for people to accept 5-30 when it first came out. Same reluctance for people to switch as now.
My impression of the Japanese culture is that history is respected much more than in the USA. Therefore, if the history consisted of using a heavier oil, it will be harder to convince the Japanese people to go to thinner oils than it is in the USA...and we've been VERY slow to even adopt the 5-30 standards that the pesky Automakers were trying to force us to use starting about 15 years ago! 10-30 and 10-40 is still VERY COMMON at Walmart...there's a reason...and it has nothing to do with being well-educated about lubrication of automobile engines.lelandstanford said:
If Honda engineers see the benefit of 5W-20 over 5W-30 why 5W-20 was not recommanded in JDM?
Generally speaking, Japanese automakers tend to try "new things" in Japan before other markets.
If you are only going to put 150K miles on this engine, my opinion is that you are absolutely fine doing what you are doing....you aren't going to have an oil-related failure. For the absolute BEST long-term performance, you would probably be better with synthetic 5-20 for the duration of the engine's life...unless it begins to consume too much...THEN move to a 5-30. I've just heard too many accounts of engines running 5-20 for more than a quarter million miles, even pulling light trailers, and still not consuming oil (although these are mostly Ford engine reports).Cardinal492 said:[B I am fine with 5w20 but I feel that 5w30 will work just as well and have no negative effect on my vehicles (I hope to hold both to 150K miles).
I am very comfortable putting Mobil 1 5w30 in my $50K worth of cars and changing the oil/filter every 6500-7500 miles. I also use either Honda OEM (Filtech), Napa Gold or Purolator Pure One filter.
Good luck [/B]