Looks like Shell has a new addition to their Rotella line up called Gas Truck. It's intended for use as it's name says in gas engines. It's available in 0w-20, 5w-20 and 5w-30. I know a lot of us have been running Rotella T6 in our rigs and I thought I'd pass this along this new oil we can add to the endless discussions of which is best. Looks like it was just released last month.
Diesel Engine Products Made By Rotella
View the Shell Rotella® full range of diesel engine products. Our heavy duty engine oils, coolants, lubes and antifreeze, help achieve the best wear protection.
rotella.shell.com