LT1-LT4 Modifications 1993-97 Gen II Small Block V8
View Poll Results: Which brand oil would you run?
Mobile 1
12
70.59%
Amsoil
3
17.65%
Royal Purple
1
5.88%
Castrol
1
5.88%
Voters: 17. You may not vote on this poll

Which oil would you run?

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Old Nov 20, 2021 | 12:46 AM
  #1  
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Default Which oil would you run?

If there is any other oil you like better, go ahead and mention it.
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Old Nov 20, 2021 | 06:08 AM
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I run rotella 15w40, cause its cheap
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Old Nov 20, 2021 | 06:49 AM
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Rotella T6 5w 40 here
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Old Nov 20, 2021 | 09:11 AM
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Rotella 15-40 or VR1 20-50 here for higher load applications (clearance depending). Mobil 1 or Pennzoil Platnum for street/DD type.
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Old Nov 20, 2021 | 10:54 AM
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Rotella has all the vitamins and minerals.
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Old Nov 20, 2021 | 10:54 AM
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I'll run what the engine builder says to run.

That's Mobile 1 5w-30 in 3 cars & a truck and Castrol 10w-40 SynTech in one car.
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Old Nov 20, 2021 | 12:17 PM
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I've been running the Mobil 1 Euro 0W-40

Darth said he likes the Castrol Titanium so thought I'd give it a try. As expected with most quality motor oil... no issues.

Attachment 712332

Which oil would you run?-n5fq4qq.jpg
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Old Nov 20, 2021 | 01:16 PM
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Joe Gibbs BR30 for break-in. (500 miles)
Joe GIBBS non synthetic (2500 miles)

Then a quality name brand synthetic. (I usually try and run a 0W40 for summer and a 0W30 in winter)

I use oil testing to determine the interval and type, and whether I think the brand is doing its job. Usually @ 6K miles.

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Old Nov 20, 2021 | 01:26 PM
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Redline 5W30
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Old Nov 20, 2021 | 08:36 PM
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I run fully synthetic VR1 20w50 in my 383.
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Old Nov 22, 2021 | 01:40 AM
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Mobil 1 Synthetic 15w-50
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Old Nov 22, 2021 | 03:52 PM
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Rotella or penzoil platinum. amzoil for no budget.
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Old Nov 22, 2021 | 06:37 PM
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Many people put down Amsoil because of price. Well you get what you pay for. BUT.... Many don't know that Amsoil has 3 levels of oil. OE, XL and Signature Series. If you're one of those die-hard every 3,000 mile guys, The OE oil is perfect for you. Even the Amsoil OE oil exceeds the top other oils in protection. It's just not recommended for longer OCI's beyond 8k miles due to less detergents. And at under $8 a qt, (retail) that's hard to beat. The XL is about the same price as Mobil 1, Rotella etc. Sig Series is only a few $ more than OE. (with a preferred customer acct, you get it even cheaper and I can help you with that)
Just don't think that Amsoil is only one single type of expensive oil.
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Old Nov 22, 2021 | 06:54 PM
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1A)Redline
1B)Amsoil Signature Series
2)Pennzoil Ultra Platinum (not just regular Platinum)
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Old Dec 2, 2021 | 03:15 PM
  #15  
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There's no information to go on to make a recommendation.

Is it a stock bottom end or built?
If built, rod and main bearing clearances?
Max rpm?
NA, boost, or nitrous?
Street, strip, mixed, etc...?
Approximate annual mileage?
Does it see long-term storage?
What cam and valvetrain?

Without that information, no recommendation can be made. It would be like playing chess in the dark.
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Old Dec 20, 2025 | 10:18 AM
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I've been running Amsoil ZRod 10W30, it's got extra zinc.
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