What is the best motorcycle OILS ???

[Andy24]

Sounds like the rings just can't quite scrape enough of the oil off the cylinders when the revs are up. Probably they have got too hot and lost some of their spring tension. The ring lands may be getting loose, too. But nothing that be would worth getting too worried about. It doesn't take much different from perfect to cause a bit of oil consumption.

I have this bike for 11000km now and the oil consumption is always the same,so i think i wont do anything until it start using more oil than this...

[1_v8_merc]

I've got to read these forums more often... I laughed for about 5 minutes at that..................

Bahaaaa, what do you expect from a ferrari forum? 95% of their members Never even SAT in a ferrari, just a bunch of bro-science and highschool level physics they made up in their head while they were driving their moms minivan to work.

[wymple]

I use 15-40 diesel oil most of the time, and sometimes a 10-40 synthetic. The very best oil, however, is clean oil. I change it often and never have come close to losing an engine or having an oil burner.

[Grimly]

I use 15-40 diesel oil most of the time, and sometimes a 10-40 synthetic. The very best oil, however, is clean oil. I change it often and never have have come close to losing an engine or having an oil burner.

That's about the size of it. 2K miles per change for me, over many, many miles and it's been a strategy that's demonstrated no downside so far. As it happens, 2K is about the limit for gear change feel, at least on mine. I might occasionally find an oil that's good for 3K, but not often.

[Gorminrider]

aye.good point. The motorcycle gearbox chops the oil up is how I read it.

[tkent02]

Yep, you can take it out of the bike after 2,000 miles and put it in a modern car that uses 10W-30, run it a long time.

[limeex2]

Bertolli extra virgin olive oil. Its Italian, so it has to better. After 3000 miles it still can be used in most recipe's from Olive Garden...

[John Park]

Bertolli extra virgin olive oil. Its Italian, so it has to better. After 3000 miles it still can be used in most recipe's from Olive Garden...

Grapeseed oil is better for air-cooled motors; has a higher smoke point.

[Juergen]

What is preferred oil for older bikes ie. 1978 Suzuki GS1000. Was told that synthetic oils even Amsoil are bad for clutches and I should stick to regular oil? I like good synthetic oil but don't want to damage bike or clutch. Or should I just use whatever I like?

You should use what you think is best for the bike. You know how it feels and reacts. I used Castrol 10-40, added 50w when the oil needed to be added on my 1982 GS1100L. Rode it up to 97,000 miles with no problems. it was ready for its fourth final drive. That bike loved to eat up the splines. To much engine for that final drive. At that time there was no synthetic.
Oh, oil is thicker when it is cold. Metal parts expand when they get hot.
My Honda CX500C 1981 is on full synthetic. It has worked wonderfully.

[tkent02]

I'm running squished up bananas in my 550/675. Runs fine.

[mrbill5491]

I use a purple dye in my oil so folks think I use expensive Royal Purple oil...now where is that deed to the swamp land...

[Vesmak]

Using Mobil Delvac MX 15w-40.

https://mobildelvac.com/en

[JTGS850GL]

Oil??? I didn't know you even need to add oil! I'll give it a try and see if it helps.

[mrbill5491]

Oil??? I didn't know you even need to add oil! I'll give it a try and see if it helps.

Squeezed banana peels...