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Re: New cam zinc oil?
[Re: Dabee]
#934897
02/24/11 12:59 PM
02/24/11 12:59 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
Valvoline VR1
If the VR1 has a API rating of SM on the back....Id pass on it. If the oil has a API SL or SM rating it cannot and does not have enough zinc. You could use that oil with some zinc additive, but Id start with better oil. Brad Penn, Gibbs, Valvoline VR that is marked not for street use, etc.
A local machine shop says the Schaeffer oil is supposed to be really good. But, I havent seen anything on it??
FWIW, I have been using Rotella 5-40 synthetic with a bottle of SLOB. I started burning up pushrods cups shortly after I switched to the synthetic. Maybe coincidence, but I dont think so. Going back to a dino/syn blend, Brad Penn.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: New cam zinc oil?
[Re: indytex96]
#934900
02/24/11 01:31 PM
02/24/11 01:31 PM
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Joined: Jul 2005
Posts: 1,954
Blairsden, CA
Triggerfish
top fuel
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top fuel
Joined: Jul 2005
Posts: 1,954
Blairsden, CA
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I used Comp Cams break in lube on my hemi's Bullet SOLID flat tappet & no problems...until months later, when the REPOP fuel pump pushrod started going bad. I used Brad Penn & went back to VR1 20/50 due to price & availability & when I had vapor lock issues & hard starting, we suspected the pushrod could be bad & sure enough, a 1/4" was dished out at the top & wiped out the cam lobe, too. I've heard by reputable engine builders that the metalurgy in the repop rods are soft & to go with an OEM rod. If your cam is a hydraulic, I wouldn't worry about using VR1 after break in. Anyway there's lots of good info for you to consider from the answers give to this thread & you can also check out www.bobistheoilguy.comA wealth of info there.
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Re: New cam zinc oil?
[Re: Chilort]
#934901
02/24/11 01:50 PM
02/24/11 01:50 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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One last time, the VR-1 api rated oil does NOT have sufficient zinc....... By EPA regs, by carrying a SL or SM rating it cannot exceed a set level of zinc... But, its your motor, cam, piston skirts, etc...Do you what you want! 
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: New cam zinc oil?
[Re: Von]
#934903
02/24/11 02:18 PM
02/24/11 02:18 PM
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Joined: Jul 2005
Posts: 1,954
Blairsden, CA
Triggerfish
top fuel
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top fuel
Joined: Jul 2005
Posts: 1,954
Blairsden, CA
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Quote:
One last time, the VR-1 api rated oil does NOT have sufficient zinc.......
By EPA regs, by carrying a SL or SM rating it cannot exceed a set level of zinc...
But, its your motor, cam, piston skirts, etc...Do you what you want!
I definitely agree w/ what Von says & I certainly can't say it wasn't the VR1's low zinc that contributed to my cam failure. I talked to the guys at Brad Penn (orig Kendall GT1) & he said they have their own foundries & vouched for high levels of zinc & phosphorus. I also talked to the guys at Joe Gibbs & he said to get their HOTROD oil, which I also used (but its a syn blend). Still, its your choice & I'd give Brad Penn a call.
A lot of guys use the diesel oils w/ an additive, but the EPA has lowered their zinc levels, too. Check out the website I posted. There's lots of info n additives, tests & oil analysis there.
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