I'm just wondering because it says it's a heavy duty diesel engine oil. Is that right? Diesel engine oil in a Porsche?

 

I run Chevron Delo multigrade heavy duty diesel oil in a 15W-40. 15W-40 would be the next step down from 20W-50 in a dino (non synthetic) oil.

Chevron is one of the last oil marketers to produce a pre 07 emission heavy duty diesel oil with higher levels of Zn & Ph.

I am sure Feral will chime in. He has experienced good results with Rotella synthetic.

 

CJ-4 oils have been out for some time now…they have proven to be even better then the last generation of HDEO's…run Rotella or Chevron Delo with confidence. BTW, your Delo is still CJ-4 compliant…and many of the newer additives will not show up in a $20 oil analysis….

 

My Delo is not CJ-4 compliant. It is not the Delo 400LE it is the Delo multigrade which is pre 07 emission oil.

CI-4 plus (CI-4, CH-4/SL)

 

Got it! DELO is great in either flavor!

 

In general my opinion is that HDEO is good for our cars, but I run the 5w40 syn Rotella b/c my car sees use in the winter. Search my threads and you can find a pair of oil analyses I had done with the Rotella T6.