Costco just had a $10 coupon that brought it down to about the same price as Walmart. I'm thinking with the longer changeout, the price is a bit less than using regular oil. Just started using Mobile1 5w-30 about a year ago, 10,000 mile intervals. Next winter I think I'll go with 0w-30 to aid in the 1st 10 minute mpg warmup. Anyone have experience using this?
I didn't see the Costco coupon, but was surprised that Costco was considerably higher than Walmart, although Costco does sell Mobil 1 in quarts vs Walmart's 5 quart container, which are a bit easier to handle.
I know I could go longer than 5000 miles but the oil changes are so easy on our vehicles I just go ahead and do it.
I know Porsche guys who are using 0w30 for that extra HP or two, but I just don't want to push it.
Tom