Re: Honda engine oil - is there a difference
I wanted to elaborate on this entire point, but not sofar as to argue it. No, Honda does not make their own oil, but neither do they make their own oil filters, fuel injectors, speedometers or even engine blocks. They're all subbed out but to meet specific standars. I used to make engine parts for Honda and Toyota ( as well as Volkswagon, and GM). Like most who have worked in a machining factory for more than one auto maker will tell you, specifications for each car company vary a great deal. How many have seen the cross section of a Fram oil filter from Walmart and one sold by Honda? Big difference, right? Surprise! Fram makes oil filters for Honda (although not exclusively).<br />It is also my understanding that their are only two makers of oil in N.America: Shell and Esso. Although I don't state that with to much confidence, I do believe that just because Honda doesn't make their own oil, doesn't mean it's no better than the .99 cent Canadian tire stuff. I DO say with a good deal of confidence that Honda's marine oil is a semi-synthetic that IS indeed better than your average Walmart 10W-30 and specifically manufactured for that application!<br />One other point. I didn't pay much attention to any threads regarding gasket leaks and synthetic oil. However, since I am now a pilot, many of the 'rules' regarding what 'parts' or fluids that are used on aircraft are adhered to strictly. I don't remember specifically which way it went, but in flight school we were taught that on piston engine aircraft, one cannot switch from regular oil over to synthetic ( or the other way around. Like I said I cannot remember which way the rule goes). The reason for this is it WILL make gaskets leak. Dunno what the reason was though. Food for thought at least.