Mobil 1 formula
#44
It sounds like the "regular" Amsoil is what I should use since I intend on OCI of 5000 miles for my SCed engine. But, I'm still a little confused about 5w30 vs 10w30.
I've been using 5w30 ever since day 1. This is even after I moved to Phoenix. I wonder if I should be switching over to 10w30 in the summer and stay with 5w30 for the cooler months?
Hmmm.
I've been using 5w30 ever since day 1. This is even after I moved to Phoenix. I wonder if I should be switching over to 10w30 in the summer and stay with 5w30 for the cooler months?
Hmmm.
#46
You'd want AMO 10w40. That's what I was running during summertime track events down here in South Florida. I was SC'd with an external oil cooler. I just did a Sebring event this past weekend with 10w30 to see how it ran. I'm going to send off a sample since I got that free test kit. I'd run the 10w40 for an OT'd Turbo Miata since the oil is pulling extra duty.
#50
Former Vendor
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I run 15w50 in my car. With oil temps over 275 degrees on-track, I felt that 10w30 wasn't going to cut it much longer. Ideally you would change the oil before every track day, but if that's going to be 12 times a year, it's probably overkill. You can probably do 2-3 track days or 3000 miles on oil you're tracking and be safe.
#51
Diesel oil has more detergents and I believe a more robust additive package for antiwear. Your mechanic may have told you to run the diesel oil since it would prevent turbo coking better than gasoline oil. Seems like a lot of guys on bobistheoilguy.com run diesel oil in their gas fueled vehicles.
BTW, I checked a couple quart bottles I have at home, and the API label is not shown on the 10w30 and 10w40 bottles I have. Probably means their additive package is still really good, and not watered down according to the new standards out there.
BTW, I checked a couple quart bottles I have at home, and the API label is not shown on the 10w30 and 10w40 bottles I have. Probably means their additive package is still really good, and not watered down according to the new standards out there.
#52
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I run 15w50 in my car. With oil temps over 275 degrees on-track, I felt that 10w30 wasn't going to cut it much longer. Ideally you would change the oil before every track day, but if that's going to be 12 times a year, it's probably overkill. You can probably do 2-3 track days or 3000 miles on oil you're tracking and be safe.