Mobil 1 hi-mileageI’m about to go buy some fluids for my 2000 Sahara with 150,000 miles on it. What are ya’lls suggestions on brands of fluids to get including motor oil?
Not really, not unless you have stiffer than stock valve springs/high-lift cam etc. There's not enough pressure on the lifters in a standard engine to require additional amounts of zddp (zinc). If it was a problem we'd all be having cam/lifter issues as only the small bunch of zddp fanatics run extra zddp. There's no one in the various Jeep forums I participate in over the past 22 years mentioning any problems with their standard valve trains using conventional motor oils... me included.Your engine is flat tappet. Use some oil with zinc or high amount of zddp. You could try some zinc addictive too.
Tons of engine oil and tons of opinions, but zddp is a must in a flat tappet.
Not really, not unless you have stiffer than stock valve springs/high-lift cam etc. There's not enough pressure on the lifters in a standard engine to require additional amounts of zddp (zinc). If it was a problem we'd all be having cam/lifter issues as only the small bunch of zddp fanatics run extra zddp. There's no one in the various Jeep forums I participate in over the past 22 years mentioning any problems with their standard valve trains using conventional motor oils... me included.
Would I run a higher level of zddp/extra zinc if I had a hotrod engine with a high lift cam etc.? Absolutely. Would I bother for a standard engine like in any of my cars and Jeep? Nope.
Zddp is still contained in automotive engine oils, its amount was just reduced some to avoid damaging the catalytic converters. Additional zddp is really only needed when you have a high-performance engine with stiffer aftermarket valve springs like are used with aftermarket high-lift cams.Correct me if I wrong, but wasnt zddp addictive in engine oil for flat tappet cam engines?
Opinions are wild when it comes to oil. Just giving op something to consider for himself.
Zddp is still contained in automotive engine oils, its amount was just reduced some to avoid damaging the catalytic converters. Additional zddp is really only needed when you have a high-performance engine with stiffer aftermarket valve springs like are used with aftermarket high-lift cams.
There are a lot who don't really understand the reasons when additional zddp is needed or not. There are a lot of bandwagons many jump on without ever really understanding the bandwagon's issue completely.Many would side with you and many wouldn’t. Like I said, it’s something I thought worth mentioning to the op to consider.
There are a lot who don't really understand the reasons when additional zddp is needed or not. There are a lot of bandwagons many jump on without ever really understanding the bandwagon's issue completely.
You keep getting confused on what I'm saying. I never said zddp is not needed. Never did, not once. What I did say is that modern engine oils still contain zddp and I simply said adding additional zddp is not needed for a stock engine. In hot rod engine with an aftermarket high lift cam and stiffer aftermarket valve springs? Absolutely more zddp is recommended.I edited my post to be a suggestion.
I will let you be absolutely right about the zddp not needed in flat tappet Jeep engine. I room full of chemical/material/mechanic engineers could argue the fact. But you’ll set them straight.
You keep
You keep getting confused on what I'm saying. I never said zddp is not needed. Never did, not once. What I did say is that modern engine oils still contain zddp and I simply said adding additional zddp is not needed for a stock engine. In hot rod engine with an aftermarket high lift cam and stiffer aftermarket valve springs? Absolutely more zddp is recommended.
Oh wait, I already said all that didn't I.
Wait, I thought this was a Wrangler TJ forum. Since when did we start getting diesel engines in our Wrangler TJs? Or could this be a hotrod forum where additional zddp is also a good idea? Nope, we're not that either.Tell that to a diesel owner.
“Just use regular 15w40, it has less zddp, but it’s still there”
Wait, I thought this was a Wrangler TJ forum. Since when did we start getting diesel engines in our Wrangler TJs? Or could this be a hotrod forum where additional zddp is also a good idea? Nope, we're not that either.
Maybe we should confine our comments and recommendations to what's appropriate for Wrangler TJ engines?
Back on topic... FirstJeep, please let us know the details on your Jeep so we can give some valid and appropriate recommendations.