Yeah the T6 sure helps them crank when cold. I needed all the help I could get when I had my GM 6.5. If I was home it got plugged in of course. But a lot of scenarios where you can’t be plugged in. It’s also great, along with the white bottle 15/40, in wet clutch applications. Motorcycles, quads, etc. it’s got the extra zinc and doesn’t have moly so no clutch slippage. It takes a pretty good beating. All I ever ram in my R1 that saw almost 14k rpm on the daily and never a problem. It’s also being used as your transmission fluid as well so pretty impressive. I picked it up from a lot of track day riders that ran it. If it holds up on a road course it’s fine for the street. Mobile 1 15/50 is also ok for wet clutches. I use that in applications that call for a heavier weight oil. Actually my zero turn calls for it in the hydros. I like lube. Good stuff.