Topic: Oil??
in Forum: C3 Engines
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. What's everyone using for oil?? I've heard 20-50, straight 30 W. Just wondering what's best!!!SPONSOR AD:: (Our Sponsors help support C3VR)
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Frederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
I believe a 10W-30 should do fine for a street car.
Read this article on motor oil in newly rebuilt flat tappet engines...
http://www.racingheadservice.com/Information/ArticleDetails.asp?ID=-1228096506
(made link clickable)Adams' Apple 2007-04-22 19:24:19
Read this article on motor oil in newly rebuilt flat tappet engines...
http://www.racingheadservice.com/Information/ArticleDetails.asp?ID=-1228096506
(made link clickable)
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Well, I didn't read the article cited above, but I've always ran straight 30wt in the '74.
Lately, tho, there has been a lot of hoopla over the newer oil formulations and additive packages. I am of a mind to start using the Delo 400 diesel oil in ALL of my cars now, except the Cad. I use it in the Mercedes diesel anyway... Seems that the diesel intended oils still have all of the properties to protect the cams/lifters in the older cars. I think I'll see what RHS has to say...
Adams' Apple 2007-04-22 19:29:10
Lately, tho, there has been a lot of hoopla over the newer oil formulations and additive packages. I am of a mind to start using the Delo 400 diesel oil in ALL of my cars now, except the Cad. I use it in the Mercedes diesel anyway... Seems that the diesel intended oils still have all of the properties to protect the cams/lifters in the older cars. I think I'll see what RHS has to say...
Joel Adams
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Good article Gunslinger!!
Your right Joel!! The diesel oils have higher levels of zinc and phosphorus, stuff these older baby's need!! Got some tired lifters and cams there
.
.Thanks guys!!!
Mel
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Lifetime MemberManteca, CA - USA
Joined: 11/20/2005
Posts: 3623
Vette(s): 1978,two tone,Metalic Rootbeer & gold
1975 L48 4 speed
I'm a fan of Castrol GTX 10-40. Use it in everything I own and have achieved some pretty high milage out of my motors. I do like to add an ounce or 2 of Lucas additive. ( I have to admit to some oil loss every trip though )aceinthehole 2007-04-23 10:48:42
Jimmy B.
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My engine builder put me on a strict diet of Quaker State 10-40 for the Corvette. Done good for almost 10 years. Now my Jaguar mechanic insists on Castol GTX 20-50 for the XJR.
Lifetime MemberBelvidere, IL - USA
Joined: 10/24/2004
Posts: 438
Vette(s): 1977 Black T-Top ZZ4 5Sp 16in Wheels
Hi Mel, I've been using Castrol GTX 10-30 in my truck and suv. Use Castrol Sen-Tec 10-30 in Corvettes. We will be passing thru Clarksville on the 3rd or4th, will call before. Dick
Lifetime MemberIrving, TX - USA
Joined: 8/21/2004
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Vette(s): #1 -1969 Corvette Coupe Riverside Gold, black interior,MN,A/C,350/350,PS,PB,window cranks.
#2 -2000 C5, black/black, 6 sp, Bose system & lots of buttons.
10W30 for me......does just fine! 
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MICK - C3VR Lifetime Member #113
in Forum: C3 Engines
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