Oil additives

[1976GMC]

Do any of you have experience with Lucas Heavy Duty Oil stabilizer? A mechanic had recommended that I use it in one of my old work trucks that has a
bit too high oil consumption. Any one here on the forum used this product? Care to share your experience?
Also, to bring the topic back to GMCMH, is it a good product to use in our engines?
--
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA

 

[john r. lebetski]

If you have to add stuff to your oil, you are buying the wrong oil.
Often adding things upsets the chemistry and degrades the oil's ability to lubricate as well.
--
John Lebetski
Woodstock, IL
77 Eleganza II

 

[Jim Hupy]

Yes, GM, makes a product called EOS. I use it in the break-in oil when
flat tappet camshafts are installed. It drains out with the oil when 500
miles are on the clock. Other than that, I use dino oil. Usually Valvoline
20 - 50 in a very high mileage 403. Other than that, no additives.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Tue, May 29, 2018, 3:13 PM John R. Lebetski
wrote:

> If you have to add stuff to your oil, you are buying the wrong oil.
> Often adding things upsets the chemistry and degrades the oil's ability to
> lubricate as well.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[Bob Dunahugh]

Our first 78 Royale had 154,000 miles on it when the frig burned it up. Had the log since new. Always had 10/30 dino oil used in it. No additives, or synthetics. Compression was 135 to 145 lbs. Hot oil pressure was at 35 psi. Used a qt in 2200 miles. It's going in another GMC as is. Bob Dunahugh 78 Royale