ZR-1 Net Registry Forums - View Single Post - 1990 ZR-1

Polo-1 · 09-28-2010

That's the factory fill, but Mobil has drpped the ZDP in the oil. Most like Royal Purple or AMS Oil with the higher ZDDP.

09-28-2010	#2
Polo-1 Join Date: Sep 2005 Location: Washington Posts: 952	Re: 1990 ZR-1 That's the factory fill, but Mobil has drpped the ZDP in the oil. Most like Royal Purple or AMS Oil with the higher ZDDP.