Topic: OIL
in Forum: C3 Engines
Already a Member?
Click Here to Login
Not yet a Member?
Click Here to Register for Free!
SPONSOR AD:: (Our Sponsors help support C3VR)
On my '81 I've used Mobil 1 15-50 for years for the heavy ZDDP (helps cams & lifters) that is in reduced levels in oils used in current cars.
|UPDATED|2/2/2015 5:35:16 PM (AZT)|/UPDATED|
|UPDATED|2/2/2015 5:35:16 PM (AZT)|/UPDATED|
Only 34 years together
No one should be using straight 30W. Where did you learn that?
I use the Mobil 1 15W-50 also. And I still have a bottle of ZDDPlus if I want to go to a 10W-30.
I use the Mobil 1 15W-50 also. And I still have a bottle of ZDDPlus if I want to go to a 10W-30.
Manual has a range based on outside temps. So I see why some are using the 15W-50. 30W is on the range also as an option. 20W-50 has the largest span on the range. 20W-40 or 50. 15W is not on the scale.
Here's the content listing for Mobil One. The fourth column in give the Zinc levels.
Only 34 years together
Lifetime MemberEquinunk, PA - USA
Joined: 10/31/2007
Posts: 2475
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
What are the feelings on using some of the name brand racing oils with enhanced ZDDP? I used one brand of break-in oil on initial re-build of a 350. At 1000 miles changed with racing oil, and a quart of break-in oil. Then at 1000 miles changed to all oil with enhanced ZDDP. All other changes at 2000 miles with enhanced ZDDP. Any opinions? THANKS!
To me, racing oil is not designed for passenger car use. Race cars get their oil changed often, our Corvettes don't. Also, I don't think the racing oils have the detergent levels that passenger car oil does.
Mobil 1 15W-50 fits the bill for me. I guess you could also use some of the other ones that have 1100 ppm of zinc. And the Turbo diesel oil has lots of zinc and it is an SN rated oil.
Mobil 1 15W-50 fits the bill for me. I guess you could also use some of the other ones that have 1100 ppm of zinc. And the Turbo diesel oil has lots of zinc and it is an SN rated oil.
Lifetime MemberEquinunk, PA - USA
Joined: 10/31/2007
Posts: 2475
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
I have ofton thought of using the diesel oil. What is the viscosity of it, and what is the cost comparitive? THANKS.
Beats me, but you can get 5 quart jugs of Mobil 1 at Walmart cheap. Nothing wrong with the 20W-50. I don't think a manual written in the mid 70's for that era oil is valid anymore with today's oil.
in Forum: C3 Engines
SPONSOR AD: (Our Sponsors help support C3VR)