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I will just stick with a diesel oil known to have high zinc and I use Blackstone labs. Additives made for increasing zinc are out there if your oil falls a little short. Use break in oil on new flat tappet engines plus I have my medical card so pass the good stuff my way.

What do you guys think about starting a thread just on the oil thing. Rusty your were driving that train so would you do the honors of starting a thread? This thread is :derailed:

No worries. Yes I do agree that the days that you could just grab any oil and run it are gone. Because of the Web we can discuss, gain info. It is funny as per that article from Rat I am switching my oils in my GMC 3500. As for the M915A2 with 60 series Detroit. OHC and ceramic rollers no...

Yea we got off topic. But as said we are here so I just for my own reasons would like to know what others feel is the max and min. amount of zinc our diesel need. Rusty I never question your paper work and I have said it before I don't measure a man /woman buy the paper work. Yea if you are my...

You missed my point what would be the best numbers for the zinc content in diesel oil. Could you scan and post your last oil analysis. What were the levels in diesel oil before the EPA drop? We should start another thread on this as this is a side track of the OP's first question but till they...

Believe years ago when the oil designed for cars lowered the zinc and the older / modified engines switched to Diesel oil. I wonder how many military trucks are still just running Rotella and still putting on the miles. Also switching cams to an aftermarket can be a problem but Comp cams would...

Found this on comp cams. No Syn. on break in and remove inner valve spring and keep the rpm up. Guess it boils down to reading everything you can that is more than opinion and then make you call as to what you are comfortable with in life. If your wrong than you pay up if not then we go on to...

Hot rod and proper break in also believe your talking about gas motors oils. Did you do the proper break in with the very high levels of zinc and not use syn. oil to start with? Our trucks are not race cars that demand a lot more. Yes there are additives and google is are friend. As I said...

http://www.nonlintec.com/sprite/oils_and_zddp.pdf Lets look at the number and it seems like most of the diesel oils are still in the ball park of 1200 ppm. Just saying. http://www.nonlintec.com/sprite/oil_myths.pdf Seems like everything I read the guys having problems are on older engines that...

Rotella T5 CJ4 has 1181 ppm zinc and the old CI4 had 1400ppm. My .02 we are still good. As for the fuel it's funny how the question has been coming up from almost day one of SS. https://www.steelsoldiers.com/showthread.php?45802-Diesel-Fuel-Grades-What-Do-You-Use

Looking at one web sight Rotella T multi grade SAE 15w40 cj4 with triple protection had 1200 ppm zinc. I just changed my GMC 3500 to Lucas 15w40 full Syn. and they claim 1281 ppm.