Thought I would share this with you guys. Took the wife fishing 30 miles offshore this morning. Caught several nice Wahoo which we will be having for dinner shortly. On the way back we docked at a local watering hole and had a couple of beers and some lunch. In pops a friend of mine who is a local charter captain with a couple of his clients for lunch. Turns out the guys are from New Jersey. We start talking and they tell me they work for Castrol. I ask in what capacity and they tell me they are petro engineers. After a lengthy conversation I tell them I use Mobil 1 in 3 cars, 2 trucks, 2 boats and a motorcycle. They said Mobil 1 is a superb syn oil. I told them I wanted to change the atf in my Titan and Frontier. They said to use Castrol IMV. They said that BP sent a group of engineers to Japan to meet with all the major Japanese auto makers when this fluid was developed. This was to ensure that this fluid would exceed the JASO-1A spec which is the standard for Japanese auto transmissions. They also said that it is a semi-syn fluid. I was going to use Maxlife and it has a good following here. However, a few friends of mine have used it in Asian cars and experienced odd shifting behavoir. Also, Maxlife seems to meet every spec on the planet which I find odd. So, next week Castrol IMV goes into both of my trucks. I'll keep you posted on the results. One more note, these guys from Castrol were outstanding and a joy to converse with. Not once during our 1 hour conversation did they bash or badmouth any of their competitors. Very professional and Castrol is lucky to have people like this in their employ!