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J
Free Member
Send PMMAPLE, Canada
Joined: 3/9/2008
Posts: 164
Vette(s): 70 VETTE 350/300HP, AUTOMATIC, ALL STOCK EXCEPT FOR MILD CAM,LAGUNA GREY, 3:55 POSI GEARS
I know ill be getting a variety of answers but what do you recommend for my stock 350 ?? I know its just a 350 but these cars do run hot in the summer months, Ive been using 10W30. Any suggestions 
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Free Member
Send PMFrederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
You're fine with 10w-30. If you're going to be in very hot summer weather then consider a 20w-40 but that's my opinion. Others are free to disagree and give their thoughts.
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15-50 Mobil 1 to get the higher Zinc content to protect the cam & lifters.
Only 34 years together
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d
hi 10/30 oil is ok,note my 79 c3 ran at temp at 220 I installed 2 core alum radiator now on hot days my temp is 175 0 but you want cooler oil must have cooler rad temp dwa
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+1 more on the Mobil One 15-50 because of the higher ZZDP level !!
John Sigmund
valkman57@sbcglobal.net
NCRS Member 61302
NW NCRS Chapter Member
Duct tape is the new Black !!
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J
Free Member
Send PMMAPLE, Canada
Joined: 3/9/2008
Posts: 164
Vette(s): 70 VETTE 350/300HP, AUTOMATIC, ALL STOCK EXCEPT FOR MILD CAM,LAGUNA GREY, 3:55 POSI GEARS
How about Vavoline VR1 conventional 10W30 ? I've been hearing thicker oil causes harder starts which can cause damage ?
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I've alway been a fan of Valvoline engine oils.
For a very short stint in my early life I ran a Valvoline Oil Change joint. Ashland Oil made sure we knew their product and upcoming products very well.
The VR1 series oil is a decent oil imo. Here is some info on their product.
GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975
Click here to see more pics of my Vette on CarDomain.
Lifetime Member #26
Borgeson Steering Box
Born 8/1981
Sequence #3975
Click here to see more pics of my Vette on CarDomain.
Lifetime Member #26
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I use Joe Gibbs conventional, I think 10w-30. The Joe Gibbs thing is for the appropriate level of zinc/ZDDP for a flat tappet cam, the conventional is because I don't think synthetic is needed or even a good idea for our motors (they weren't designed for it and synthetic may leak past the looser seal tolerances). It's expensive, but I only change oil in my vette once a year.
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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Vman73 said: +1 more on the Mobil One 15-50 because of the higher ZZDP level !!
+2
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Clarification on the Joe Gibbs oil I use: it's the hot rod oil, not the racing oil. Not sure you'd want to use racing oil in our cars, unless you raced it.
|UPDATED|3/22/2015 9:31:14 PM (AZT)|/UPDATED|
|UPDATED|3/22/2015 9:31:14 PM (AZT)|/UPDATED|
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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in Forum: C3 Engines, Driveline and Handling
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