diesel engine oil for it's zinc and phosphorus content?

[tri again]

Some say it's better for steel to aluminum contact points
like cam shafts to aluminum heads and has been generally decreased
in newer motor oils for various reasons.

Any suggestions?

Any price shock on cases of oil these days (yet)?

Time to bury a few case of something and it would be nice
to get the right stuff that will work on a bunch of
different machines.

[camoweasel]

I have used Rotella and Delo for many years. Both are hardy oils and loaded with zinc and phosphorus. Have you looked at the label on the new Rotella bottles? It is JASO MA approved.

[Macs]

I have been using rotella for quite a while with no complaints. I think it was $13.99 a gallon last time i bought some.

[200XMichigan]

I have used Rotella as well, awesome to see its JASO approved now. I have found Valvoline motorcycle oil (actually has slightly more zinc and phosporus and their ATV oil) for around $4-5 a quart. I should try to get the specs off Rotella. Valvoline has a PDF with specs of all their oils, zinc content, TBN, phosphorus, etc.

Actually I just e-mail Shell to get the specs for Rotella so we can know how it compares to Valvoline wet-clutch oil.

[Dirtcrasher]

I've read it all over the net when you search "ZINC additive", lots of info about it and the havoc todays oils are causing............

[Tri-Z 250]

My brother sells Oil, Grease, Specitality Lubes for Central Petroleum or CEN*PE*CO. He sponcers many of the ATPA truck and tactor pullers in the National Series. All their products are highly refined and exceed ALL others. Approved by JohnDeer MFG, as well as the top Military Grade Spec given by the US goverment. Nothing on the MARKET will meet their standards...Amsoil, Purple, GTX, QuakerState ALL take a back seat and have done so test after test. PM me for contact info. The Company has been around since 1911 as a small developer of FARM and Over the Road oils and lubes. All the products are conditionded for EXTREME use in both Diesel and Gas powered motors.

[vanaman]

Lucas makes a break-in additive that has added zinc to help with flat tappet cams and stuff.

steve

[vanaman]

http://www.lucasoil.com/products/dis...%20Zinc%20Plus

[Thorpe]

Ripped this from the ZDDP website "After 70+ years of trouble-free, metal-metal engine protection, the E.P.A. is forcing ZDDP (Zinc Dialkyl Dithio Phosphate, containing both Zinc and Phosphorus) from domestic motor oil. If your engine was designed prior to the 1990s, your non-roller lifters require ZDDP in your motor oil to avoid premature deterioration."

We use this stuff on all the old motors of the cars we build in the shop... (for what its worth)

http://www.zddplus.com/

[racer....X]

I use shell rotella in every engine I own. I also add some STP engine treatment, it has a high content of zinc

[tri again]

Ripped this from the ZDDP website "After 70+ years of trouble-free, metal-metal engine protection, the E.P.A. is forcing ZDDP (Zinc Dialkyl Dithio Phosphate, containing both Zinc and Phosphorus) from domestic motor oil. If your engine was designed prior to the 1990s, your non-roller lifters require ZDDP in your motor oil to avoid premature deterioration."

We use this stuff on all the old motors of the cars we build in the shop... (for what its worth)

http://www.zddplus.com/

Nice, clean hit Thorpe.

Very interesting read. Just a little shocked that I haven't heard about this topic.

Then again, I quit building engines and transmissions professionally back in the 80's.

But I also DO remember every Volvo that came in was guaranTEED to have a wasted cam.

My tractor is a 47, car 82, trucks 89 and 92, trikes are all, well, 70-80's Hondas so I guess it's time to go look for some SDDP. But I want to get the right stuff.

Most additives, especially particulate suspensions are almost immediately filtered out.

Like the teflon slick50 types.

I also liked the fact that there was little 'commercial bias' in the article.

[ametzker]

Another vote for Rotella T. It was the oil I used at my shop. I wish I still had that 55 gallon drum of it left.

[RamsesRibb]

What a coincidence. Mickey Dunlap just recommended Rotella for all four strokes in another thread on this forum.

[Buster Brown]

Good info. Thanks for sharing!

[tri again]

Now I just read that diesel oils are more 'detergent' maybe foam more
and that diesel engines have less tight clearances so the oil really is designed differently
than for gas engines.

This is one of those times when the more I learn,
the less I know.