Rotella T6 5w30 in Ford Godzilla 7.3 on motor home?

[GrumpyCat]

But it is still rated for wet clutch.........which is still puzzling me. I know no diesel motorcycles with shared sumps.

Self-certified for gasoline motorcycle use. When T6 was still API Sx I respected Shell for their self-certification. But when they continued after dropping all gasoline engine certifications I haven't bought Shell oil since, and rarely Shell gasoline.

The JASO T903 specification for MA/MB motorcycle applications stipulates any one of the major standards body's gasoline certification. Doesn't repeat the testing, just an accounting exercise for prerequisites. The only thing JASO adds of their own is a wet plate clutch test. Heck, I can do that myself! "Clutch doesn't slip! Pass!"
https://www.jalos.or.jp/onfile/pdf/4T_EV0604.pdf

 

[SubieRubyRoo]

Bro. Don’t fall for Saudi propaganda.

PUP >> Valvoline Advanced

 

[FlyingTexan]

I never understand why people want to use a diesel oil in a gas engine. Different oils for different applications. Of course you can use it without any problems. But it's not optimum.

Kinda feel the only reason anything is called a diesel oil was because of past US gas sulfur levels and the restriction of it for EPA reasons in gas engines.

 

[GrumpyCat]

Kinda feel the only reason anything is called a diesel oil was because of past US gas sulfur levels and the restriction of it for EPA reasons in gas engines.

Once Upon A Time there were Heavy Duty Fleet Lubricants. Fleet operators could purchase one drum of oil for everything, gasoline, diesel, gear boxes, automatic transmissions (there is an Allison spec), differentials, everything. Those days are past.

Most motorcycles share one oil compartment with engine, manual transmission, and wet plate clutch. For the Allison automatic transmission certification the HDFL had to have a specific slip on transmission bands which are effectively the same thing (in different form) as a wet plate motorcycle clutch. Motorcyclists noticed. And that was the start of the popularity of Rotella, Delo, Delvac, etc, for motorcycle use.

 

[BrendanC]

valvoline EP HM 5w-30 is my choice for our godzilla in fleet use. whisper quiet top end.

 

[fantastic]

A "High Mileage" formula or 5w-30 C3 European oil would work good in that application.

 

[Kennedy01]

I would personally consider Mobil 1 ESP 0w30. It's not any more expensive than regular Mobil 1, ACEA C3 plus some very stringent European manufacturer approvals, 3.5 HTHS and 12 kv @100C.

My point being it surpasses Rotella in approvals and performance, and it's about as close to being a "universal" oil as can be had. It's not going to be particularly taxed in a 7.3 gasser in a motorhome.