I am ready to do my 1st oil change. Went to the store and bought 2 qts of Mobil 1 0W-40 fully synthetic oil. When I got home I noticed it says European Car Formula on the front. Looked at the API Service Rating and it says SM/CF. Owners manual says I need API Rating of SH.
Looked on the Mobil web site, and they only have one type of 0W-40. Can someone explain the API Service Rating?? Am I safe???

 

I have used Mobil-1 0-40 since new (04 Scrambler 500) & still running strong as ever........... you're fine.

 

Check this link for detailed information on Mobil 1 0W-40.

http://www.mobil.com/USA-Engli...VLMOMobil_1_0W-40.asp


You can also check on the 0W-40 ATV oil from Amsoil.

 

Here is the Amsoil link. It specifically lists a SH rating.

http://www.amsoil.com/storefront/aff.aspx

 

Here are two other links:

This one shows test results between Amsoil and Mobil 1.
http://www.1st-in-synthetics.c...ur_ball_wear_test.htm


This one has information on Shell Rotella T 5W-40 Synthetic, which like Amsoil, shows a specific SH rating.
http://www.shell.com/home/Fram...duct_rotellasynth.html

 

sheepdog working overtime there. good info.

 

I run Mobil1 15w50 in my Hawkeye. No problems using it. I might go back to 0w50 in the winter, haven't decided yet.

 

I use Castrol syntec 5w-50 in the wives Hawkeye and it works great. I went with the 5W-50 because it was close to the 0W-50 weight.