Factory oil

[kerry witherspoon]

What does GM use in the factory for the oil in the d max when deliverd.

[Dawg]

I was told by a mechanic at a Chev dealership that GM and Castol are affiliated and that Castrol is GM's oil. I have nothing to support the claim, but it may be a place to start.

[Texasoilman44]

Castrol is now part of BP (British Petroleum). They may have a deal with GM though on supplying oil for initial fill.

Regards,

Kevin

[Richard Pelletier]

Kevin, check out this post.
http://forum.62-65-dieselpage.com/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=3&t=001640&p=

I asked the same question, I am using the Delvac
1200 and like it fine.

Richard

[Viking]

My dealer's parts man tells me that GM Canada uses PetroCan 15-40 packaged in the GM containers.

[Petrella]

Yeah I know GM Canada uses Petro Canada 15W40. i just asked the diesel mechanic at my dealer

[DDD70]

Viking and all Fellow Canadians

Initial oil fills will be what ever
is used by GM USA.No Duramax equipted
trucks built in Canada.(Flint or Pontiac MI.)

[george morrison]

Last word I had was the initial fill was Mobil Delvac 1200S 15W-40 which is an excellent first fill oil. Then suggest switching to Delvac 1300S 15W-40 for subsequent fills or Delvac 1 5W-40
George Morrison, STLE CLS