1990 ZR-1
 

19,000 CAN I USE MOBILE ONE. NO LEAKS RUNS GREAT. THANKS

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.

Re: 1990 ZR-1
 

The majority use Mobil 1.

Use Mobil 1 High Mileage for higher zinc content.

Re: 1990 ZR-1
 

THANKS FOR THE INFO. JOE

Re: 1990 ZR-1
 

That's not exactly true, you can get M1 with higher ZDDP, try 0w40 euro formula.

Re: 1990 ZR-1
 

GREAT INFO . JOE

Re: 1990 ZR-1
 

joe,
we're glad to have you aboard and hope you learn and contribute freely...however, caps lock is shouting at us and hard to read.

Re: 1990 ZR-1
 

[QUOTE=Kevin;98610]joe,
we're glad to have you aboard and hope you learn and contribute freely...however, caps lock is shouting at us and hard to read.[/QUOT ok doug. joe

Re: 1990 ZR-1
 

Interesting read here :

http://www.zr1specialist.com/HAT%20W...5%20Engine.pdf

Re: 1990 ZR-1
 

thanks alot for the info i made copies of that test sheet. very interesting. joe