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Sep 18, 2023 | 08:29 PM

Xlexustech

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Oil recomedaion

for a hot cammed Ls3 reading conflicting info.. so looking for insight whats everyone running 5w30 or 0W40?
I live in a 4 season state but my car wont see the road in the winter. I WILL START IT IN THE COLD THOUGH.

Sep 18, 2023 | 08:31 PM

98CayenneT/A

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From: White Bear, Mn

Why you going to start it in the cold?

Sep 18, 2023 | 09:20 PM

Che70velle

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From: Dawsonville Ga.

5w30 if the bottom end is stock.

Sep 19, 2023 | 06:27 AM

Xlexustech

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Quote:

Originally Posted by 98CayenneT/A

Why you going to start it in the cold?

i like to let the morot get to operating temp once or twice a winter so that the oil circulates.

Sep 19, 2023 | 07:51 AM

02EBC5Z06

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From: Massillon, OH

Quote:

Originally Posted by Xlexustech

i like to let the morot get to operating temp once or twice a winter so that the oil circulates.

Horrible idea. You will never get the motor hot enough and what will happen is you will just let it idle for a bit, then shut it off and let a bunch of condensation build up in the motor.

Put a battery tender on it and let it sit. No reason to start it up at all.

Sep 19, 2023 | 11:57 AM

G Atsma

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From: Central Cal.

Quote:

Originally Posted by 02EBC5Z06

Put a battery tender on it and let it sit. No reason to start it up at all.

^^^^^This^^^^^^^
Let it hibernate.

Sep 19, 2023 | 08:21 PM

KW Baraka

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Quote:

Originally Posted by Xlexustech

for a hot cammed Ls3 reading conflicting info.. so looking for insight whats everyone running 5w30 or 0W40?.......

A cam does not warrant changing the engine weight.

My heads/cam LS3 has run with 5w30 for 8 years and 50K miles.

On the other hand, my bored/stroked LS3 runs on 10w40.

KW

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Sep 20, 2023 | 05:30 PM

old motorhead

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From: SE TEXAS

I like the Euro Spec Mob 1 0w40. High Zn and P levels. Might not run it in a stock app, but like it in an LS with a few miles on it that I know I'm going to run the snot out of.

Sep 20, 2023 | 06:43 PM

#10

Kawboom

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Put the car on a lift, about 4' high. Get some scrap lumber, and start a campfire under the oil pan. Let cook medium-rare and then start.

Sep 21, 2023 | 09:27 AM

#11

grinder11

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Quote:

Originally Posted by old motorhead

I like the Euro Spec Mob 1 0w40. High Zn and P levels. Might not run it in a stock app, but like it in an LS with a few miles on it that I know I'm going to run the snot out of.

That's what I run in my built LS7. With the stock LS3, except a cam change, I think 5w-30 is good, but 0w-40 is a bit thicker even when cold, regardless of the 0w designation.