oil and filter

73dartsport318 said

Me and my dad have been using the stp knockoff that the family dollar store has been selling think its called engine treatment or something like that. on the back of the bottle it has the ingredents and it says that it has the zink dialkyldithiophosphate and something else. suppose to be the same but stp dont have a ingredents list but it looks the same and just as thick as hell. We have been using it for years with no problems.

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Was it engine treatment with xzep2 or oil treatment in the blue bottle? I could be wrong. The oil treatment might be cram full of zinc but I sure could not find any thing that states the fact of what is in it. But anyways I don't think I will be adding any additives to my oil period. Check this out:

http://www.carbibles.com/engineoil_bible.html

"It's interesting to note that some race techs have reported sludge buildup in race engines as a result of aftermarket additives being used in conjunction with the regular oil. The chemical composition of the additives isn't as neutral as some companies would lead us to believe, and combined with particular types of oil and high-stress driving, they can cause oil breakdown and sludge to appear. The lesson from them appears to be "don't use additives". "