Transmission oil change question

jleonard said:

Like I said, I had a discussion with the "old timers" at my local Velvet Drive distributors and that's what we went with.

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I was thinking of switching to 30W motor oil since that's what I'm carrying around for the engines. Just one less barrel of oil to store. I was more interested in why synthetic multi grade and not regular dyno multi grade?? Thanks!!

Edelweiss said:

I was thinking of switching to 30W motor oil since that's what I'm carrying around for the engines. Just one less barrel of oil to store. I was more interested in why synthetic multi grade and not regular dyno multi grade?? Thanks!!

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Oh I didn't address that. I know that the bearings need lots of lubrication in these gears, and I know that ATF is not the greatest lubrication choice (although used here because of its anti-foaming quality).
So I went with synthetic because it is "supposed" to be a better lubricant, and run cooler.
Ok probably splitting hairs here (I guess no more than many on this board), but that was my reasoning.

Synthetics survive overheating better...a temp or blockage in cooling or other adverse condition would have less effect on a synthetic.

I have twin dics on my, now I am going to have to dig into the manual to see.....My prepreation lists just gets longer....Thanks TF!

jleonard said:

Oh I didn't address that. So I went with synthetic because it is "supposed" to be a better lubricant, and run cooler.
Ok probably splitting hairs here (I guess no more than many on this board), but that was my reasoning.

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Ok. . Unfortunately, I don't want to switch back to multi grade in my engines again, as for whatever reason, the girls like it too much and drink it gingerly. So I would still be carrying two different types of oil if I put Syn, in the tanny's. I think I'll go with the 30W for now until someone comes up with a do or die reason to switch it. Thank!
LB

I'll add to the chorus - same as in my manual - Dexron is "preferred" SAE30 is "acceptable".

Ken