I had the engine work done 2 years ago.

I looked on line at Rotella T and it lists "SM". Regardless of the oil brand I'm still going to use ZDDP in every oil change in my old flat lifter engines, right or wrong it make me feel better using it...

Mike B smile

Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD