Boy its been awhile since ive posted here!! i hate moving!! i even had to register another name!!! Darn it!! back to topic-sorry for rambling...
The Shell Rotella T Syn. is as close as we Americans will eVER get to Helix Ultra. I lost (in the move of course!) the stats from a Euro website for Shell Helix 5w-40 and 0w-30. The only differences were (between helix ultra& rotella syn.) 1. helix ultra had a slightly higher VI
2. It had some PAO in it, whereas Rotella T does not. Helix had a slightly lower pour and pumping point etc. probably due to the PAO. seriously though, the differences were minimal. Oh, & the sulfated ash was lower (1.0 for helix ultra v. 1.3 for rotella t syn.).
However, if you own your own oil lube place and auto repair facility, you can buy for $1000 a huge barrel of Shell Helix Ultra 5w-40 from your local distributor. They (Shell U.S.) finally updated their site to include it. I think the barrell is like 55 gal.? I think that works out to about a little less than $5/qt. Not bad if you got the funds-huh? Oh, and ANYONE can buy this stuff-not just businesses.
On another note, I have recently used 0w-40 Mobil 1 and I loved it but, Autozone in my area is having a hard time to continually carry it. So, I decided to look for another PAO-based syn. oil and.....i found it. $21 for a gallon of Kendall GT-1 5w-40. It is SL grade, meets Mercedes Benz-229.3, and ACEA A3, B3. For those of you that for some reason do not like KEndall, they are now owned by Phillips 66, which is now merged w/ Conoco as, ConocoPhillips. Sorry for rambling! Its good, no great to be back!
Chris J.