lownslo

iTrader: (3)

As most guys know, we run a restrictor on the turbos for trucks. I am running a .065 on mine. During the hot summers here, the oil gets so hot I can smell it. I run the mobil 1 5w-30 truck and suv oil since i bought the truck. Should i consider swapping to a thicker oil like a 10w-30 or even heavier than that?

What are you guys that drive in hot climates doing? Keep in mind, under the hood on the cooler days in Mississippi is usually around 95-100 before starting the vehicle!

Thanks,
Chris

53RUSSELL

iTrader: (9)

I'm running 20/50 here in AZ with my T70.

lownslo

iTrader: (3)

mobil 1 synthetic or what?

53RUSSELL

iTrader: (9)

On my old 5.3 20/50 regular oil and the new motor the same thing for right now.

lownslo

iTrader: (3)

thanks for the input. Not sure if i want to run conventional oil or synthetic. Its just a stock 6.0 with the turbo. No internal mods except cam and springs.

Sleeper04

iTrader: (6)

I run RP 15/40.

wentbig

I run Cheveron DELO 15/40 in all my wips, Harleys, truck, car

1989k1500

iTrader: (23)

LsxCody

iTrader: (3)

i run valvoline vr1 20w50

Wheatley

iTrader: (12)

Dont get confused
"The first number, followed by W represents the low temperature viscosity, 5W, 10W, 15W... the lower this number, the more fluid at low temperature.

"The second number gives the high temperature viscosity: 30, 40, 50. The higher this number, the more viscous the oil at 100C/212F.

If the internals are stock,I would not personally run 20W-50 for example,These engines have tighter clearances therefor thicker oil can actually cause increased wear due to improper lubrication.That is if it is stock internals though.


Going from a 5W-30 to a 10W-30 for example is not much difference at normal operating temps like most think.
I personally run Amsoil ATM 10W-30 using UOA (used oil analysis) every now and then