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can anybody tell me what besides the Zinc they took out of engine oil??? Does STP oil additive have what was taken out, or is it just BG that has them? When did they take these additives our???

Robin,
I'll check the article again tonight to be sure but I think they said zinc and phosphate or phosphorus? I believe it was in the mid 90's they started to do this. They found these chemicals were causing catalyst failures???? I'll double check again tonight and verify the info. Mopar400

Thanks,
I'm told that Nascar has found, and now lots of others, that is causes cam failure on all motors with lifters nothing like being notified of the fact that ALL NEW OIL IS ONLY FOR OVERHEAD CAMS ONLY

• so now if you have to add what they took out

Well thank God the Neons still safe

Robin,
The chemical is zinc dialkyl dithiophosphate, a combiation of zinc and phosphorous. They said the zinc reacts with the cam lobe's iron surface that creates a chemical coating strong enough to keep parts separated to reduce wear. I purchased a case of the GM addative #12345501. Were I work also sells GM vehicles but they can only get it in a case of 12 quantity. They are 4 FL OZ bottles you can add w/ each oil change. If anyone wants them but don't want to buy a case,or they aren't available locally in single bottles. I'm willing to sell some of the bottles. I get a discount on them so I don't have much invested. Mopar400

JJ wrote:Well thank God the Neons still safe

LoL Mopar400

I''ve keeping a eye on this post , & not beeing into chem( anymore) does this include all oil like castrol 10w040 ?

JJ wrote:Well thank God the Neons still safe

That means the Shadows safe too.

cowboy wrote:I''ve keeping a eye on this post , & not beeing into chem( anymore) does this include all oil like castrol 10w040 ?

From what I understand it is all oils except racing oil that say for off road use only. Mopar400