View Poll Results: What Weight Oil Are You Using?

0W-30

5.67%

5W-30

19.95%

10W-30

174

42.86%

0W-40

2.22%

5W-40

3.69%

10W-40

5.91%

0W-50

0.99%

5W-50

2.46%

10W-50

0.99%

15W-50

5.67%

20W-50

7.39%

10W-60

0.99%

What Weight Oil Are You Using

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May 26, 2010, 11:30 PM

#196

crewdawg130

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brad penn 20-50

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May 27, 2010, 07:12 AM

#197

badev0

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Brad penn 10w30

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May 31, 2010, 11:11 PM

#198

awdturbo8

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I use mobil 10w40. Aluminum rod 2.0. 950r on e85

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Aug 1, 2012, 01:28 PM

#199

intj123

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I feel sorry for most the cars that are being mistreated here......

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Aug 1, 2012, 02:14 PM

#200

masonh

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Motul 300V 15W-50

Last edited by masonh; Aug 1, 2012 at 02:23 PM.

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Aug 5, 2012, 12:05 PM

#201

evoredy

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Mobil 1 10w-30

3K interval

~400WHP/320TQ (modest)

93K Miles

*I just saw my friend vent his freshly built block (Manley I Beams/Manley 85.5mm Pistons 9.5:1, ACL Trimetals, OE crank/OE Crank specs/E85/27PSI) after bolting on an FP Black and getting a 520/470sh TQ dyno tune. He swore by Valvoline VR1 20w-50when he was on the stock turbo at lower TQ levels (same build/fuel), but I think the oil weight did him in on the higher HP/TQ appication and OE bearing clearances.

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Aug 5, 2012, 12:15 PM

#202

8UpUrV8

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AMSOIL 10w-40
Stock block 85k miles
93 oct.
Starting at 10k OCI's and working up to 15k OCI's (Oil analysis at 7500 determined 10k would be my next OCI.)

This thread is a good read on why our oil pumps need a more viscous oil for higher rpm use (7500+), and why so many built engines run 20w50.

http://www.bobistheoilguy.com/forums...Number=2206204

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Aug 5, 2012, 12:20 PM

#203

!EVIL EVO VIII!

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amsoil 5w-30
320awhp
stock turbo

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Aug 20, 2012, 12:45 PM

#204

CeliOnce

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Would 5w30 or 10w30 be better for a Michigan/Northern US climate? I've been through the whole thread, but no concrete answers really. My car is completely stock ATM.

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Oct 6, 2012, 07:32 PM

#205

rrstlevo

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Quote:

Originally Posted by CeliOnce

Would 5w30 or 10w30 be better for a Michigan/Northern US climate? I've been through the whole thread, but no concrete answers really. My car is completely stock ATM.

either really...5w-30 preferred in colder climate