Best Oil For Bikes

daveo wrote: www.penngrade1.com/Products/Motor-Oils/SAE-20W50.aspx

Used the 40wt last year, and now using 50. The engine loves it, and it's green!

...it's GREEN? :woohoo:

...that's all I need to hear, I'm sold! :silly:

...

Well I have been using Valvoline Extreme Blue HDEO, 100% synthetic 5w40 for 1000 miles.
Starting un cold weather is a blast, instant. Before I was using Castrol actevo mineral 20w50 and was having trouble in winter. Oil temperature is down by 10°c.

KZ-Izzo wrote: gotta love me some royal purple, and running AV gas! bikes love that lead mix :)lol

becareful runnin aviation fuel its a non lubricated fuel and will burn up piston rings

Rotella, because it's cheap and I can find it everywhere.

lol aviation fuel is too lubricated lol its for high rpm motors that are air cooled thats what the lead in the gas is for, at my local airport its low 5 something a gal totally worth it, ive ran it in all my bikes and never had a problem they love the shit lol and the lead actually keeps the cylinders cooler.

KZ-Izzo wrote: lol aviation fuel is too lubricated lol its for high rpm motors that are air cooled thats what the lead in the gas is for, at my local airport its low 5 something a gal totally worth it, ive ran it in all my bikes and never had a problem they love the shit lol and the lead actually keeps the cylinders cooler.

High rpm motors? On what piston aircraft is the redline above 3500 rpm?

Ive been using Castrol GTX 20/50 since my first Z1 I bought new in 1973 and have never had an engine problem. I drag raced that one every weekend for 3 years too. Is it the best, I dont know but I still use it in the 2 I own now

I was repairing car engines for almost 20 years. I use cheap oil from Advance auto or Walmart for all my cars and bikes.

So I went with Rotella T6 in 5W-40... level is correct... and the oil light stays on a tick longer than it used to when starting. The 5W should actually HELP oil production early, right?

QNman wrote: So I went with Rotella T6 in 5W-40... level is correct... and the oil light stays on a tick longer than it used to when starting. The 5W should actually HELP oil production early, right?

Do you have oil pressure light or level light? For some reason most bikes have oil level light.

KZ models do not have an oil level light. They has an oil pressure light. Ed

650ed wrote: KZ models do not have an oil level light. They has an oil pressure light. Ed

And on an old KZ like mine..... that light sometimes stays on a couple of seconds after cold starting. If I run it every day, not so much. If it hasn't been run in a couple of weeks, stays on longer. I assume that s due to wear in the bottom end (main bearings).