What is the best synthetic oil?

GZ3 · 07-22-2010, 08:52 AM

Quote:

Originally Posted by NIZMOZ

All of these are good, but I have seen enough UOAs that prove Royal Purple causes more wear on cars and doesn't like extended intervals.

Best to worse

Redline
Amsoil
Penzoil Ultra
Penzoil Plat
Castrol German
Mobil 1
Motul
Royal Purple
Castrol Syntec

yeah royal is not that good, so were theses UOAs specific to the 370 motor?

NIZMOZ · 07-22-2010, 01:14 PM

Quote:

Originally Posted by GZ3

yeah royal is not that good, so were theses UOAs specific to the 370 motor?

Well mostly VQ series engines. The VQ is a bit hard on oils and RP just didn't do well.

Red370 · 07-22-2010, 04:32 PM

Quote:

Originally Posted by NIZMOZ

Well mostly VQ series engines. The VQ is a bit hard on oils and RP just didn't do well.

RP does just fine in mine. Been running it for 18,000 miles so far and 60K+ in my last car. Here is a good test, RP is one of the best.

http://www.animegame.com/cars/Oil%20Tests.pdf

LiquidZ · 07-22-2010, 04:53 PM

Quote:

Originally Posted by Red370

RP does just fine in mine. Been running it for 18,000 miles so far and 60K+ in my last car. Here is a good test, RP is one of the best.

http://www.animegame.com/cars/Oil%20Tests.pdf

This article is thrown around a lot by Royal Purple users. This test is really only designed to see if an oil has extreme pressure additives in the oil formulation. It is not a measure of how well an oil performs, although this test leads people to believe so.

wishihadnav · 07-22-2010, 05:43 PM

Quote:

Originally Posted by LiquidZ

This article is thrown around a lot by Royal Purple users. This test is really only designed to see if an oil has extreme pressure additives in the oil formulation. It is not a measure of how well an oil performs, although this test leads people to believe so.

..those additives are better served in gear oil due to their corrosive nature..

NIZMOZ · 07-23-2010, 11:58 AM

Quote:

Originally Posted by Red370

RP does just fine in mine. Been running it for 18,000 miles so far and 60K+ in my last car. Here is a good test, RP is one of the best.

http://www.animegame.com/cars/Oil%20Tests.pdf

Really? You had UOA's done of "your" oil? Because MANY and I mean MANY people have and they have proven on other forums RP is not that good and NOT recommended.

Just because you use it and you don't see any issues doesn't mean it isn't causing higher wear over time. You won't know that without having the tests done. And RP is far from being the best, it's the best at being the worst.

GZ3 · 07-23-2010, 12:16 PM

Quote:

Originally Posted by NIZMOZ

Really? You had UOA's done of "your" oil? Because MANY and I mean MANY people have and they have proven on other forums RP is not that good and NOT recommended.

Just because you use it and you don't see any issues doesn't mean it isn't causing higher wear over time. You won't know that without having the tests done. And RP is far from being the best, it's the best at being the worst.

I know you used to use PP faithfully, did you ever try ultra? And would you pick 300v or ultra in your experince, thanks

NIZMOZ · 07-23-2010, 04:37 PM

Quote:

Originally Posted by GZ3

I know you used to use PP faithfully, did you ever try ultra? And would you pick 300v or ultra in your experince, thanks

Haven't tried Ultra yet. Mainly because it's like $8 more for the 5 quart jug from walmart vs PP which I think does just fine.

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