- Oct 25, 2014
- 2014 OZ Cruze CTD & 2010 JSW 6MT
Not anymore. The old CJ-4 Delvac ESP was primarily PAO and made from thicker base oils. It was the high percentage of PAO that gave it the impressive thermal properties like pour and flash point. I’m sure the NOACK value was 8% or less for that stuff. It was a leader in its class of HDEOs. The only oil remotely close to it now is Amsoil, Ravenol or Redline 5w40 which is $10-13 a quart.very interesting, looks like the Mobil 1 oils are much lower burnoff..
However the new Delvac ESP is all group III and III+ with thinner base oils. I believe Mobil used the CK-4 rollout as an excuse to cheapen the formula and they are still “surfing” on its old reputation.
There is very little difference between the current CK-4/SN T6 and Delvac ESP.