Rotary Car Club - View Single Post - 5w-20

11-02-2008, 09:53 AM

Yes sir... The 5W30 (which is designed for rotary engines with working omp's) is good to 30 below..

Alot of the MI guys use it because well... we see VERY COLD mornings..

Hell I use the 5w40 in my wifes Jeep and my bmw which has OVER 215K

11-02-2008, 09:53 AM	#13
SpooledupRacing Guest Posts: n/a	Yes sir... The 5W30 (which is designed for rotary engines with working omp's) is good to 30 below.. Alot of the MI guys use it because well... we see VERY COLD mornings.. Hell I use the 5w40 in my wifes Jeep and my bmw which has OVER 215K