I recently purchased a 93 Lexus SC300 (2JZ-GE) with 133k miles. It has been serviced at the dealer from day one, using Castrol 5-30. I am in the process of the 1st ARX rinse phase, using Castrol. I have used M1 T&SUV (5W-40) in other vehicles and would like to use this oil in the Lexus. I live in coastal central Cal and rarely see temps lower than 50 degrees. The car is driven on the highway @ 70 mph for a minimum of 30 minutes 95% of the time. Is the M1 T&SUV a good choice? I have searched and not found much info about using this oil in this vehicle. Thanks.