Joined Dec 2003
587 Posts | 2+
Where ever we park the motorhome, USA
Copied from KtmTalk:
We have confirmed that Chevron has recently made a change to the formulation of DELO 400 Oil to meet the new CI-4+ specification. To meet the new specification, Chevron has added 260ppm of Moly. Moly is not compatible with wet clutches.
The new formulation appears to just be making its way into distribution, our local Chevron Oil dealer still has some CI-4 oil on the shelf. DELO 400 with the CH-4 specification is also ok.
Although designed for large diesel engines, DELO 400 Oil has been a popular oil for use in motorcyle engines because of it's anti-wear properties and very good wet clutch performance. Rekluse Motor Sports has recommended DELO 400 for use with the z-Start clutch.
After speaking with Chevron Technical support, it does not appear that Chevron has a suitable replacement product.
However, I confirmed with Shell Technical Support that the Shell Rotella T oils meet the CI-4+ standard and do not contain any Moly or other friction modifiers.
Thanks,
Al Youngwerth
President, Rekluse Motor Sports