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OK Zinc is now through the roof 225ppm. wear metals pretty low 1ppm Iron,Aluminum, first time they have shown up on a report. Phosphorous is still very low 24ppm. Acid is high 1.11KOH/g We had been running Kaesar S460 since new and rebuild. From the MSDS its made by Royal Purple. I have been...

Hey guys I have sweetened my oil by taking out 10 gallons form the 30 gallon sump and ran it while sending samples off. One thing that is puzzling is the fact that the Zinc level is rising as the Phosphorus has stayed low. LE doesn't know where the Zinc might be coming from. Widman says there...

Hey just saw a post on another forum where a guy said that letting a car idle and not taking off right away in the cold can cause damage because the rich fuel mixture the fuel can wash the oil from the cylinder walls causing cylinder wall wear? I tried searching BTOG forums for this but my...

Was hoping to find a good link that explained the BWM system but I can't right now. As I recall the designs is pretty well thought out it has to do with liters of fuel consumed as well as key starts and how you drive. It will adjust the miles left up or down not based on the odometer so much...

OK so I read a "White paper" put out comparing Comp Oils and have decided to go and give Amsoil a try. I just got another analysis back for my smaller comp and it's starting to show some Aluminum in the wear metals category. I'm changing it out this morning less then 4 months run time. Very...

jake88, I just reread you post and see your calling over 10,000 hours a good measure for the RPVOT, the LE is only 1300 minutes!! Huge difference, what does that mean?

Thanks guys. Looking at the spec sheets For example Amsoil states Copper strip corrosion test w/results 1A, Rust test as Pass, Foam after 10 min at 0 and demulsibility [oil/water/cut off (minutes)] 40/40/0 (10) LE shows the same results calling it Emulsion test is 5 minutes?? 40/40/0 (5). Only...

Oh tomNJ what's this "RPVOT test (ASTM D 2272)" none of the oils I'm looking at show this test.

Jack88 tell me about air release. How is that measured? What should I be looking for?

OK I guess I could stick with or go back with the Kaeser oil which is again repackaged RP but its real expensive compared to other oils out there. So trying to compare one brand against another to see if there is really any difference. [censored] if its ISO-46 its ISO-46, Seems like all the...

So I'm looking at different spec sheets for ISO 46 compressor oil. LE, OEM Kaeser (ie.RP), Amsoil and a Noname. It seems they, if they list the four ball test, are each different. Two run the ASTM D-4172 but at different weight, rpm, and temp, and another shows a different ASTM D2783 test all...

Hey We are running a Rotary screw compressor in our plant, actually two. When it was first bought the company sold us on Synthetic oil and oil sampling. They'd come out take a sample and send us a report. Never explained what was on the report in detail. When the report said change filter or oil...

Just to update.8/22/13 we were paid $1.15/gallon. At one time my former boss was paying to have it removed. Then found a guy that would take it for free, he used a waste oil heater in his shop. He was a PITA and wanted us to separate out mineral spirits and synthetics. That wasn't going to...

What kind of nail gun are you using most air tools only require 90psi. Hitachi roofing nailers NV45??? have a depth adjustment, other might too. That way you don't have to keep climbing down off the roof when shingles go from cold to hot and you need less pressure to drive the nail. Not to...

Oh and should the Rotella be 20w50 too? How bout Mobil 1. I have that in the crankcase now? I've used Royal Purple too not much difference to the untrained eye.

Isn't there some thing in gear oil (75w90)that isn't in a 20w50 engine oil?? "Hypoid" or something? Or is that only needed when the gears are beveled like in a rear end? Yes its combined. I'll have to look up Rotilla.

Hey guys I have tried using the search and joined here hoping it would yield more or better results. I didn't> I've a 1995 HD 883 that I've had since new. just short of 13,000 miles. While I have used different engine oils in the past I have always stuck to Harley Brand Primary Oil since it...

Hey guys new to the forum first post. Joined because I was looking to learn more. I had a BMW E34 (525i) I bought it with 60k on the clock and got rid of it at 256k 14 years later. I had followed all the recommenced intervals for oil changes some were as long as 12,000 miles or just under a...