I just copied this from another current link on this forum...
Originally Posted By: glen242
Originally Posted By: glen242
Originally Posted By: FL_Rob
Take a look at the VOA section, you'll find the VR-1 dosent have as much zinc as you think it does.Redline,Motul,or even Mobil 1 15w50( good stuff)are all very good performers.
Can you link me to the VOA that shows VR-1 does not have as much ZDDP as I (and Valvoline) think it does?
I searched the VOA section and could not find any info.
Thanks,
Found this:
Re: Valvoline VR1 20W/50 [Re: KA426]
Veno
Registered: 09/08/08
Posts: 1
Loc: Houston valvoline has all the ZDDP that is advertised... BlackStone labs have been remiss reporting due to calibration errors. that they acknowledged over @ team chevelle... THEY GOOFED... this was done in 2008... I have had Valvoline VR1 30weight and Valvoline 20W50 tested by two different labs.. the samples were taken from the same bottle and sent to Polaris labs
http://www.polarislabs1.com/oil-analysis.htm and to analysts inc
http://www.analystsinc.com/index.html...
the results were with in 10% of each other.. Zinc was well over 1400ppm and phosphorus was 1300ppm...
Valvoline is everything they say it is and I use it...
I run a very aggressive Solid FT cam with 180 lbs on the seat and 350 over the nose....
I did a breaking with delo400 and have ran a steady diet of VR1 straight 30weight....
veno
I never trusted Blackstone and never will! If I did not trust Valvoline's numbers, I would not use it.
I saw a post(s), don't know where, that Valvoline took Blackstone to task and they admitted they did not have their test equipment properly calibrated.
Show me substandard ZDDP numbers, from a different lab(s), and I may change my mind. But Blackstone - baa.
Valvoline has plenty of Zinc/Phos and like I said others have their doubts about Blackstone.