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02-10-2020, 09:00 PM
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#1 |
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Registered User
Join Date: Aug 2012
Location: St. Croix River Valley, WI
Posts: 795
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For those who run Valvoline VR1 Oil and a flat tappet cam
I was doing some digging around on the internet this evening and found out that the Valvoline straight SAE 30wt VR1 oil has more zinc in it than the VR1 10W-30 oil does.
If you only drive your truck in warm weather, the SAE 30wt oil may be a better option if you have a flat tappet cam and want maximum zinc content. Here's the data: https://sharena21.springcm.com/Publi...2-ac162d889bd1
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Meet "Old Roy": http://67-72chevytrucks.com/vboard/s...d.php?t=707801 |
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02-10-2020, 10:17 PM
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#2 |
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Senior Member
 
Join Date: Mar 2017
Location: Northbridge,MA
Posts: 494
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Re: For those who run Valvoline VR1 Oil and a flat tappet cam
Luckly I just bought the 20w-50 and it has 1400 like the 30w.
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72 C20 292 3OTT 77 GMC 2500 4x4 Longstepper 350 4sp 50 3100 ex Airforce/Town of Mendon fire truck 72 GMC 1500 2wd short stepside 250 4sp 78 GMC 2500 4x Longstepper 292 4sp 54 6400 Chevy 5 window 4 sp 2sp vac rear end Shell oil truck/dump truck (Norman) |
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02-11-2020, 03:49 AM
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#3 |
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Registered User
Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
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Re: For those who run Valvoline VR1 Oil and a flat tappet cam
Read this guys blog in its entirety:
https://540ratblog.wordpress.com/ You will find both the film strength and zinc content is variable to a degree. Thing that matters the most is film strength. You might be surprised at what some oils claim. Over 88K on a complete top end, I keep posting that on here, mostly all stock. |
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