Honda CBR250R Forum : Honda CBR 250 Forums - View Single Post - Is 5w30 conventional okay?
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post #5 of Old 01-22-2019, 09:23 AM Thread Starter
Radha21
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Quote:
Originally Posted by jkv357 View Post
Don't use any standard automotive oil - especially in a 30-grade (5W-30, 10W-30), as it contains Friction Modifiers that may eventually make the clutch slip. A bigger issue with "regular" auto oil for most cycle engines is the lack of proper additives (ZDDP) for a cycle's valvetrain.

You are much better using a diesel oil like Rotella T5 10W-30 or a cycle-specific oil.

Just to make it confusing, Shell has introduced a new Rotella T6 synthetic "Multi Vehicle" 5W-30 which DOES NOT have the proper additives like the "regular" Rotella T6 5W-40 does. Multi Vehicle is not really a "diesel" oil, more of just a standard auto oil.

So DO NOT use any Rotella stating "Multi Vehicle" in a cycle engine.

An actual 5W-30 conventional motorcycle-specific oil is unusual - what brand is it?
Sorry, disregard the 5w30.....that was actually car oil.

What about:

Shell Rotella T4 15W-40 Heavy Duty Diesel Oil, 1-gallon $12.99 at Walmart (United States)

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