Is there a member out there that explain the SAE equivilant of Gargoyle Mobil B, and Gargoyle Mobil C? Apparently the Society of Automobile Engineers wasn't around in the '20s. I just read an original copy of a Ruckstell manual, and it suggests one pint of each.
Try this: 1-800-ASK MOBIL (275-6624)
Hopefully you'll get a good answer
Please share the results of your research. Inquiring minds want to know. Thank you.
I called Mobil. They were very nice, but didn't want to deal with my question. So, I'm back to square one. Here is what I know so far. I have Ruckstells in two of my T's, and one on the way. I've used SAE 140 for years, and haven't had a problem. I just thought it would be interesting to find out, but it is obvious even though Mobil probably has the capabilities, they just don't wish to be of any help. BTW, Mobil was in halfs with Ruckstell in the publication of the booklet.
Contact Rich Chillingworth on this forum as he did a presentation to the Tulsa Club years ago and now we all understand it.
Oil was rated by SUS. I may have the letters off but 600 w is the same as 180w SAE. My local Chevron dealer filled me in when I was looking for oil for my TT. It has yellow gears so you need mineral oil. todays oil is so mush better I feel that the 140 I could get would work just fine. And it has for over 15 years. Scott