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Topic: OIL ???

in Forum: C3 Engines


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OIL ??? (1/18)
 3/21/15 4:25pm
JC VETTE 70
Former Member

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, - Canada

Vette(s):
70 VETTE 350/300HP, AUTOMATIC, ALL STOCK EXCEPT FOR MILD CAM,LAGUNA GREY, 3:55 POSI GEARS


Joined: 3/9/2008
Posts: 164

 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 Big smile 

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Re: OIL ??? (2/18)
 3/21/15 5:22pm
Gunslinger
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Frederick, MD - USA

Vette(s):
1969 convertible L71 427/435 4-speed black interior


Joined: 9/8/2003
Posts: 3398

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.
Re: OIL ??? (3/18)
 3/21/15 6:10pm
johnu
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Scottsdale, AZ - USA

Vette(s):
1981 Corvette Two-Tone Claret color, 4 spd, C7 Vert


Joined: 5/23/2007
Posts: 614

15-50 Mobil 1 to get the higher Zinc content to protect the cam & lifters.

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Re: OIL ??? (4/18)
 3/21/15 7:12pm
dwa175
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leesburg, FL - USA

Vette(s):
1979 coupe and now 2007 c-6


Joined: 7/19/2014
Posts: 195

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
Re: OIL ??? (5/18)
 3/21/15 8:58pm
Vman73
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Gig Harbor, WA - USA

Vette(s):
1973 L82 4 Speed Coupe - Very original, well documented driver/survivor. 2016 Bend Regional NCRS Top Flight.


Joined: 10/2/2014
Posts: 405

+1 more on the Mobil One 15-50 because of the higher ZZDP level !!

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Re: OIL ??? (6/18)
 3/22/15 8:38am
JC VETTE 70
Former Member

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, - Canada

Vette(s):
70 VETTE 350/300HP, AUTOMATIC, ALL STOCK EXCEPT FOR MILD CAM,LAGUNA GREY, 3:55 POSI GEARS


Joined: 3/9/2008
Posts: 164

Re: OIL ??? (7/18)
 3/22/15 10:48am
Sarge81Lifetime Member
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WEST SENECA, NY - USA

Vette(s):
1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.


Joined: 12/3/2001
Posts: 2379

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. 



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Re: OIL ??? (8/18)
 3/22/15 11:56am
daveo76
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Vancouver, WA - USA

Vette(s):
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.


Joined: 8/25/2005
Posts: 857

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.  

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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.
Re: OIL ??? (9/18)
 3/22/15 12:13pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1407

Vman73 said: +1 more on the Mobil One 15-50 because of the higher ZZDP level !!


+2


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Re: OIL ??? (10/18)
 3/23/15 12:31am
daveo76
Former Member

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Vancouver, WA - USA

Vette(s):
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.


Joined: 8/25/2005
Posts: 857

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|


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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.
Re: OIL ??? (11/18)
 3/23/15 11:31am
dads2vetteLifetime Member
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Ash Fork, AZ - USA

Vette(s):
1981 Red Interior White exterior


Joined: 4/18/2007
Posts: 1052

I've been using bacon fat.  Doesn't work very well but boy, it sure smells good!
 
I'll second or third the Valvoline 10w30 with zddp additive.  I've used it in my crate engine since just after start up and have 5000 miles on it over this past year.  I've used just about every name brand and really the most important thing is to change your oil regularly, sooner than later and for our engines, add the zppd.


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Re: OIL ??? (12/18)
 3/23/15 8:47pm
JC VETTE 70
Former Member

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, - Canada

Vette(s):
70 VETTE 350/300HP, AUTOMATIC, ALL STOCK EXCEPT FOR MILD CAM,LAGUNA GREY, 3:55 POSI GEARS


Joined: 3/9/2008
Posts: 164

Re: OIL ??? (13/18)
 3/23/15 10:37pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1407

JC VETTE 70 said: If i decide to add the additive how much is required at every oil change ?


One bottle.


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Re: OIL ??? (14/18)
 3/24/15 10:54pm
Jet Tech 79
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Haworth, NJ - USA

Vette(s):
1979 L82 4spd


Joined: 1/31/2015
Posts: 2

Joe Gibbs has become Driven Racing Oil. The HR series oils contain a corrosion inhibitor that helps in cars that aren't used regularly. I had emailed Driven with a few questions and received an email back from Lake Speed Jr., in minutes, with all of my questions answered.
Re: OIL ??? (15/18)
 3/26/15 10:59am
rep69
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Suffolk, VA - USA

Vette(s):
1969 convertible 427 4speed


Joined: 7/24/2012
Posts: 134

I have been using Brad Penn oil in my 1969 427. I only change the oil once or twice a year and have found good prices if you buy from ebay or the oilwarehouse.
Re: OIL ??? (16/18)
 4/1/15 9:15pm
JC VETTE 70
Former Member

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, - Canada

Vette(s):
70 VETTE 350/300HP, AUTOMATIC, ALL STOCK EXCEPT FOR MILD CAM,LAGUNA GREY, 3:55 POSI GEARS


Joined: 3/9/2008
Posts: 164

Re: OIL ??? (17/18)
 4/3/15 12:21pm
vettejackLifetime Member
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Titusville, FL - USA

Vette(s):
1977 Coupe (White), 2006 Convertible (Victory Red). NCM Life Member #2221.


Joined: 12/19/2007
Posts: 154

I've been running Durablend in my C3 since I've owned it (2007). It's for use in cars over 75,000 miles and made up of a synthetic/petroleum blend. No issues, no leaks.
Recent pics:
 
 
 
 
 
And if you happen to live in Florida...take a real close look at this plate: it's the only one you should ever have on your C3!!!! Thumbs Up
 














|UPDATED|4/3/2015 9:21:13 AM (AZT)|/UPDATED|


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Re: OIL ??? (18/18)
 4/4/15 11:15am
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1407

vettejack said: I've been running Durablend in my C3 since I've owned it (2007). It's for use in cars over 75,000 miles and made up of a synthetic/petroleum blend. No issues, no leaks.
Recent pics:
 
 
 
 
 
And if you happen to live in Florida...take a real close look at this plate: it's the only one you should ever have on your C3!!!! Thumbs Up
 



  












Not enough zinc/phosphorus for flat tappet cams.




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