C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What viscosities do you use??

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Old Jul 21, 2003 | 01:15 AM
  #1  
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Default What viscosities do you use??

Intersted what motor oil viscosities you are using........
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Old Jul 21, 2003 | 01:45 AM
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Default Re: What viscosities do you use?? (Alex D)

5W-30 here.
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Old Jul 21, 2003 | 10:02 AM
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Default Re: What viscosities do you use?? (Alex D)

!0W-30 in the summer just like the manual says "may be used" at temps above 0.
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Old Jul 21, 2003 | 08:29 PM
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Default Re: What viscosities do you use?? (Strick)

:cheers: I have been running AMZOIL RACING GOLD 20w/50 for past 5 years

Oil pressure never drops below 50 at idle when very hot

Running around the mountains, as I like to do, oil temp goes through a 40 degree temp swing, that's why I like this oil!

Plus, seeing low oil pressures scares the h%^l out of me :eek:

It's pricey, around $ 8 per quart

:blueangel: :seeya

:steering:
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Old Jul 21, 2003 | 10:44 PM
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Default Re: What viscosities do you use?? (hngacurv)

0w40 in my 396 it has 23 psi at idel & 70 psi at 7000 with a stock pump Z 28
spring .0029 on the rods .003 on the mains used 1 pt of oil in 6800 miles
& ya can't beat that. :) :) :)
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Old Jul 23, 2003 | 05:27 PM
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Default Re: What viscosities do you use?? (Alex D)

Mobil 1 ..10/30...it never gets real cold here in Florida... :D
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Old Jul 23, 2003 | 05:29 PM
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10W30 year round.
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Old Jul 23, 2003 | 06:52 PM
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Default Re: What viscosities do you use?? (Alex D)

20- 50 castrol. always had good luck.
1991 gmc pu before I sold it 238,000 miles, never been apart.
1988 Corvette, 123,000 miles still going strong.
I had a Grand National, used mobile 1, no problems.
I think that doing a regular maintenance is the key. I change approx every 2500 miles. Blood of the engine. :chevy
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Old Jul 23, 2003 | 07:12 PM
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Default Re: What viscosities do you use?? (Alex D)

10 w 30 here :cheers:
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Old Jul 24, 2003 | 07:29 AM
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Default Re: What viscosities do you use?? (Alex D)

10w30 all year, here is Pennsylvania.
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Old Jul 24, 2003 | 09:48 AM
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Default Re: What viscosities do you use?? (Alex D)

10/30 synthetic :cheers:
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Old Jul 24, 2003 | 05:34 PM
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Default Re: What viscosities do you use?? (Alex D)

Cool months....10w/40w Valvoline Max Life...
Warm/Hot months....20w/50w Valvoline Max Life....Southern CA.
My '84 has just over 87k miles on it......runs great...and with the Max Life the small oil leaks have gone away.....go figure...
tony

:flag :flag :flag :flag
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Old Jul 24, 2003 | 10:39 PM
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Default Re: What viscosities do you use?? (Alex D)

5/30 mobil 1 year round [IMG][/IMG] :chevy
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Old Jul 25, 2003 | 01:56 AM
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Default Re: What viscosities do you use?? (bstirn)

10w30 Mobil 1. :yesnod:
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Old Jul 25, 2003 | 02:52 PM
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Default Re: What viscosities do you use?? (R94 LT 1)

Why in my 85 owners manual does it say DO NOT USE 10W40 OIL?
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Old Aug 4, 2003 | 05:09 AM
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Default Re: What viscosities do you use?? (montie98)

Hello!!
I am running straight 30 Oil (Penzoil) , Ít has allways worked in our TAD Dragster. It takes out a little noice from my RR so the PITA, KS is not drawing me back. :chevy
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Old Aug 4, 2003 | 07:52 PM
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Default Re: What viscosities do you use?? (Alex D)

10/30 mobil1 :cheers:
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Old Aug 4, 2003 | 09:00 PM
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Default What viscosities do you use??

10W40 quaker state year round.
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Old Aug 4, 2003 | 09:37 PM
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Default Re: What viscosities do you use?? (Alex D)

Odd that I'm the only guy using 0/w40 but then I'm probley the only guy who has his oiling syteam working perfectly! :cool:
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Old Aug 4, 2003 | 11:21 PM
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Default Re: What viscosities do you use?? (AGENT 86)

10w-30 Castrol here. :party:
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