S14eva1

iTrader: (6)

I've been going back and forth with a few people about this topic.Some folks down here recomend Valvoline VR1 racing oil 20w50 and others prefer Mobil 1 10w30 for FI engines.


I have used both before,but I would think 10w40 would be best in our climate and its not to thick for cold starts.From doing some research alot of folks shy away from the 20weight because is too thick for cold starts and from what some speculate it would cause premature wear of the rod and main bearings.I know nothing is going to last forever,but is a pain in the *** blowing a motor due to bearing failure.....I been there before


So lets open this up and tell us what motor oil you are using and why?

lexforlife

iTrader: (7)

VR1 RACING OIL great stuff................................................................for drag racing . formulated for quick use

i use and only use mobil 1 15w50.. tried royal purple , turned to water in no time.. 10w30 too thin.. 15w50 has kept my original 14 yr old 600 rwhp singing along very quietly

S14eva1

iTrader: (6)

Actually now that I think about it....15w50 sounds like a good choice for our climate.

Not too thick for cold starts and thick enough for full operating and WOT temps.


Ed you buy it from Autozone or Discount?

Wicked SC

iTrader: (3)

Castrol GTX 10w-40

TeeLex

iTrader: (24)

No cats here and I use Amsoil Racing Dominator Oil 15W-50 - more zinc and phosphorus for added wear protection.

SH_JZZ30

iTrader: (1)

I'm running valvoline vr1 20w-50 conventional which was recommended by a few shops that do plenty work on JZ motors.

I used to run royal purple 20w-50 then I switched to Mobil1 15w-50 then went to the vr1.

S14eva1

iTrader: (6)

Shameed Valvoline VR1 is a synthetic blend,not conventional....atleast from what it says on the bottle.

sc5sdanny

good thread any recomendations for the vvti motors?

SH_JZZ30

iTrader: (1)

On their website you can see that is it a conventional. I just looked at the bottle and it doesn't say. They also make the "Not street legal" racing oil which is what Ed is talking about changing the oil more often (500miles). They make that in conventional and synthetic. The NSL also has more calcium than the vr1.

The vr1 is a normal 3000 mile conventional oil that has a higher zinc and phosphorus content.

S14eva1

iTrader: (6)

Yea I see what you are saying....but 20weight is still too heavy for could starts IMO

lexforlife

iTrader: (7)

20 weight is cool once it finally if ever gets to full operating temps but while trying to get there i feel sorry for wrist pins , i also feel sorry for bearing clearances trying to squeeze a film of concrete in there while oil is cold

S14eva1

iTrader: (6)

Exactly what Im saying...its just too thick for cold starts.


Im picking up 5quarts of 15w50 this weekend....how many quarts do you guys put in your motors? I usaully drop in 5.2 -5.5 quatrs or 1/4 inch above the full line

DINH300

I've been using 20w50 for the past 4 years and I race and put my car threw hell any and everyday I drive it.

Rising_Sun

iTrader: (2)

Mobil 1 0w-40 here

SH_JZZ30

iTrader: (1)

I've been putting exactly 5 quarts in my 1jz.

Also we live in Florida where it doesn't get that cold where the oil gets congealed.