I have the Torco RTF in the tranny and its sooo dam amazing.
Friction modifiers reduce friction for clutch type differentials that are aggressive and need to slip more. It will make the problem worse.
Torco oil the best oil now?
Thanks for posting that link. It’s an interesting article even if the author’s self-congratulatory tone puts me off somewhat.
As I’m sure the author (540RAT) knows, Shell and Ferrari have a marketing relationship and that’s why Shell oils are used in Ferrari F1 cars and are the factory fill for Ferrari road cars as well. Ferrari and Chrysler are both owned by Fiat and Pennzoil is owned by Shell. So Fiat is putting the same oil into their top-of-the-line Chrysler as they do into their Ferraris. Pure coincidence?
I’m sure Shell Helix Ultra / Pennzoil Ultra is an excellent oil. But I don’t think the choice of the factory fill for the Viper was simply because, “Chrysler is so impressed with Pennzoil Ultra, that they selected the 0W40 version of it as the only Factory Fill oil for their latest 8.4L, 640 HP, V-10, 200+ mph, Dodge SRT Viper.” I think 540RAT is overlooking the business reasons for making that choice.
Be that as it may, unless I’m reading the article wrong, the best Amsoil comes in at position 8 and the worst at position 67. And Torco comes in at position 107 of 118.
U try the friction modifier?
It's a small bottle.
I think the GM one is better suited, but not sure.
http://www.torcousa.com/torco_product/limited.html
Do you mean 0F (which is -17.8C) or do you mean -32C (which is -25.6F)? Or did you mean to say 0C which is 32F?I think I am going to try the 0W30 for my next change going into the winter, as I drive my NSX in temps as low as 0 F (-32 C) during our high altitude winter.
Do you mean 0F (which is -17.8C) or do you mean -32C (which is -25.6F)? Or did you mean to say 0C which is 32F?
Denver has a fairly high variability in temperature during the winter; it can be very cold one day, and very mild the next. I would absolutely NOT use 0W30 in Denver, because it's unsuitable for those mild days. Even 5W30 isn't recommended for temperatures typical of winter in Denver. Remember, Acura recommends 5W30 only at ambient temperatures below freezing; 10W30 is recommended for ambient temps of -2F and above. I might consider 5W30 for winter use for an NSX in Chicago (normal January high 31F low 17F), but I would never use anything but 10W30 in Denver (normal January high 44F low 17F).
9.3-12.5 is the textbook viscosity range of a 30W oil (0W30 to 10W30).Just for reference, back in 1991 Honda recommended engine oils for the NSX that had a viscosity between 9.3 and 12.5 Centistokes at normal operating temperature (212°F).
The recommendation from Honda's engineers in the manuals is clear.