This is a zinc subsitute for oil ZDDP. Has anyone heard if this is safe to use or will it harm babbit?
Wilf
Some additives may interfere with band operation in the transmisson.So be carefull.
Mack :
What additives interfere with band operation ???
Full synthetic oils will waste a clutch in a Motorcycle. I would expect the same from using them in a T on the bands and the clutch.
Wilf, not to get a controversy goin' again, but why would you need it? A stock model T engine does'nt have enough valve spring pressure to need it. KB
You need an oil with lots of ZDDP in a typical muscle car from the 1960's - 1970's. I use Valvoline Racing in my 427 side oiler equipped Mercury Cougar for example. The ZDDP was introduced in motor oils in 1956 because the auto manufacturers started to use extrmely stiff valve springs in high performance engines that year.
It is totally unnecessary in your lawn mower or your Model T, and unnecessary in just about any car built prior to 1951. Some of the Cadillac and Oldsmobile V8's and Chrysler Hemi's in 1951 - 55 could see some benefit, so if you have one of those then it makes sense.
ZDDP is an extreme pressure additive that prevents scuffing between cast iron parts, It is beneficial when valve spring pressures exceed 100 pounds seat pressure. A Model T valve spring has perhaps 5 pounds of seat pressure.
exactly right. most any modern oil exceeds what a model T ran on. however i see no way that zddp could harm a model t engine.
surprizingly enough walmart brand supertech has shown to be a very good performing oil even in higher performance engines.
you have to remember that non detergent oil is straight meneral oil. with no additives what so ever.
My engine rebuilder suggested using an additive, but I hesitated for the reasons you have all suggested.
Thanks to all for your responses.
Regards Wilf
theres nothing wrong with it, it problably wouldnt be a bad idea to use it in a early engine when you first start it.
now like royce said, later engines that run higher spring pressures, radical cam profiles, and turn high rpm can certainly benefit from it.