[Nightfall ss1le]

Originally Posted by mlee

Yes, it's definitely okay but not mandatory like it is for the ZLE. (just listed as an alternative if others are not available) I think most would not want to do an additional change just for a track day if not required. 15W-50 is not recommended for street use in any of our cars so you would have to change back to 0W40.

I normally don't buy oil online either except this is so hard to get in the store and the dealers charge an arm and a leg. We've had a couple of threads on this and Speedway came out tops shipped to your door. I've ordered at least 4 times from them and had $20 off coupons a couple times. I've also never paid shipping.

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Was that for 10 or 12 quarts? I’ve been buying the 0W-40 off eBay, but I’ll start checking for that $20 off coupon from Speedway. Cost me $105.99 shipped for 12 quarts. I wish we could run the 15W-50 all the time since it’s 1/2 the price of the 0W-40 lol. Honestly I don’t think it would hurt a thing as long as you let the car warmup longer in colder weather. I had mine in for a month just because I had 2 track days planned really close together & didn’t want the added hassle/expense of swapping oils back & forth in that short of time frame.