At Wally World they've got the Mobil 1 5W-30 "New Car Formulation" and Mobil 1 10W-30 "Vehicles With Greater Than 75,000 miles".
I've got a 2001 Miata with 18,000 miles and have started using the above 5W-30. Question - Should I use this year round or should I use a 10W-30 in the summer? Same question for my 2002 Protege5 with 5000 miles.
I also have a '97 Maxima SE 5-speed with 84,000 miles. Question - Should I use the above 10W-30 year round or switch to a 5W-30 in the winter?
I do all my driving in the North-East and mostly in Delaware where it rarely gets below 20 deg F. I drive hard at times. BTW, I've got Redline MT-90 in both transmissions and Redline differential gear oil in the rear of the Miata. Any thoughts on the Redline in a Torsen differential?
I just put AAMCO ATF syn-blend (and GM filter kit) in my wife's '96 Astro. Is that stuff decent? I'm running Redline differential gear oil in its rear as well. Is that all right?
Any replies are greatly appreciated by this Newbie.
[ September 01, 2002, 07:17 PM: Message edited by: ex_MGB ]