Boss got two cases of Honda Motorcycle Oil 10w-40 variety. Just wondering who makes it for Honda? I told him maybe Castrol as a guess. Also is this oil synthetic?
What are you basing this on? Just as long as the bottle does not say "Energy Conserving" on it you're good to go.quote:
Originally posted by Wayne Kelln:
HP4M contains moly, and should not be used in an engine with an integreated transmission.
I'll second that Maxima, some of their race oils have ridiculous VI ratings (5W50) yet remains very shear stable even in high rpm shared transmission application. I initially skeptical of the 5W50 as none of the 10W50 I am familiar with (Motorex, Repsol, Castrol R4) hold up under abuse. Apparently the spread was achieved with use of high VI polyol esters. You will be surprised many 'race' spec cycle oils like Maxima Ultra and Motul 300V comes with a healthy dose of Moly.quote:
Originally posted by Wayne Kelln:
You can never get any solid infomation from these huge companies. Living in the LA area, I have aquaintances who work for Honda (corporate), and not even they can get any info about their own oils!
No doubt they get it where they can get it cheapest. One thing, Honda's oils were API SG for years, but have recently quietly gone API SJ.....a downgrade in my opinion. I no longer use Honda anyway since I discovered Maxima, which has an add pack and a couple of ester synthetics that are the best there is!
Like they said, GN4 is dino oil and HP4 is a synth blend which has a fair amount of ester, judging from the smell. HP4M contains moly, and should not be used in an engine with an integreated transmission.