Hello to all; a mechanic recently suggested that I start the season with the Lucas brand Hot Rod oil, which, in his opinion is better than regular OTC motor oil, thanks to the added zinc. Does anyone have exoerience with this oil ? I'm running a solid lifter (365hp) 65, and a 390hp 66'. Thanks in advance !
-
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
15W-40 Rotella or equivalent has more than enough ZDDP to satisfy the needs or your engine. No need to pay a premium price for a boutique oil. Search Rotella on this site and you will find many threads dealing with this.Dick Whittington -
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
You just need an oil that meets API specification CJ-4/SM. Even this stuff will do.
MikeComment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
Though you're a long time NCRS member, you haven't spent much time on the TDB, so we'll cut you some slack.
Download the following pdf. Print the article beginning on page 3 and give it to the "mechanic". Give him an opportunity to absorb it, then have a discussion.
DukeComment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
Thank you gentlemen!Though you're a long time NCRS member, you haven't spent much time on the TDB, so we'll cut you some slack.
Download the following pdf. Print the article beginning on page 3 and give it to the "mechanic". Give him an opportunity to absorb it, then have a discussion.
Duke
I'll keep it simple........ 10w-40 from Castrol is good enough.Comment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
No, it's not...
DukeComment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
This Castrol Diesel oil does meet CJ-4/SM specification. But why bother....The SuperTech does too.
MikeComment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
After pulling my 72 out of storage, I went to Advance Auto for oil and a filter for it. Their catalog didn't go back far enough so the fellow looked it up. When I set my Rotella on the counter he said "you know that is diesel oil don't you?" I gave him a 30 second education on it for classics.
I learned a long time ago from Duke!Comment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
Try Brad Penn. Break-in-oil Made north of me in Bradford, PA.
They make labels for other companies too (rumor has it).
www.amref.com or 814-368-1200
American Refiniing Group, INC.Comment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
As everyone else has said, you DO NEED the added zinc in these older engines. Been using Rotella 15W-40 in my 64 and she likes it just fine.Comment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
Castrol 10W-40 mentioned by the OP is not CJ-4. In fact, no 10W-40 carries a C-category rating. The 15W-40 SAE viscosity range is unique to C-category oils. Castrol does offer a 15W-40 CJ-4 (you linked to the spec sheet) as does Valvoline and many other brands, but they are not as commonly available as Chevron Delo, Mobil Delvac, Shell Rotella, and the Walmart SuperTech house brand.This Castrol Diesel oil does meet CJ-4/SM specification. But why bother....The SuperTech does too.
Mike
Brand makes absolutely no difference. I usually shop for oil at Walmart and buy the least expensive brand. The last time I did, Delo was less expensive than the house brand, so I bought Delo.
The Castrol spec sheet does not state the P concentration, which is an important part of the CJ-4 spec. IMO Chevron has the most comprehensive spec sheets, like the Delo 400 LE 15W-40 CJ-4 spec sheet at the following link:
DukeLast edited by Duke W.; April 11, 2014, 09:47 AM.Comment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
Can I safely use racing fuel (108 octane) in my 66 roadster, 327/350HP? I'm currently usinh standard hightest gas with a octane booster and and a stabilizing additive. ThanksComment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
There is absolutely no need to use "racing fuel" unless you have detonation nor is there any need to use any kind of fuel additive.
As built by Flint your "11:1" compression L-79 was likely closer to 10.5:1 with the OE .018" gasket. If it was ever rebuilt with a thick gasket it is probably closer to 10:1. You can measure head gasket thickness with a feeler gage at the corners of the head-block interface.
If it was rebuilt with "flattop pistons" and a thick head gasket in the last 40 years, which is a common "engine builder" method it's probably about 9:1 and should run detonation free on unleaded regular with the OE lazy spark advance map at considerable sacrifice to performance and fuel economy.
Don't drink the internet Kool-Aid. Measure head gasket thickness and run some tests with different octane commercial gasolines.
Take a look at this information, too.
DukeComment
-
Re: LUCAS HOT ROD OIL (10w-40) - ADDED ZINC any good?
Thanks Duke, I'm still learning!Comment
Comment