Oil Requirements

[John R]

I've always used straight 30 wt oil in my Kawasaki engine on my Tiger Cat II, was at the dealer picking up a part and he told me Kawasaki recommends 10w-40 in their engines now.
Anyone have any thoughts on this?
I've always found air cooled engines seem to use oil with multi grade oils, anyone here use a multi* grade oil in their engines?

 

[cpurvis]

Yeah, I do. 15w-40 Rotella, Valvoline, Delvac, Chevron, etc. Whatever's on sale.

 

[DK35vince]

I've ran Rotella T-6 synthetic 5w-40 in my Kawasaki powered zero turns for years with no oil usage

 

[John R]

Thanks, I'm going to give it a try.

 

[7394]

I didn't like Kaw brand 10w-40, my Kawasaki began to need a tiny bit added. I went back to the 30w, but am switching this fall to the 15w-40 Rotella T-4

I called Shell-Rotella & was able to get a tech on the line, he said the T-4 has all the ZDDP & more than my engine would ever need.

But he also said to avoid the 30w Rotella as that didn't have much ZDDP for a flat tappet air cooled engine.