Well, today we borrowed a friend's car while my wife's car gets a little body work done to it. I'll have to find the year out later, it's not the whole point of the post. Some mid-90's Nissan Sentra with some 4 banger. LOTS of top end noise. I had to add over 2 and a half quarts to put the oil to the 'full' mark. I had guessed it'd take at a minimum of 2 quarts, so I was going to get 3. Went into a Family Dollar store, and they had Quaker state for $3.25 a quart, or American XT for $2.50. It's not my car, and apparently they don't care about their oil, so I got the thinnest American XT they had in stock, which was some 10W-40, lol. I didn't feel too bad because it says it is SM rated.
So here comes the question. If every SM oil is good, who would feel comfortable running this oil for 5k mile OCI's for their whole engine's life? I'm not saying it wouldn't do it, just curious. I know I wouldn't really want this stuff in my vehicle, that is, if it didn't have a consumption problem. Oddly, on the back, it says it is "Excellent for TURBO-CHARGED gasoline and moderate duty diesel engines". Wow, kind of sounds like a good oil. At least a pretty stout oil. I reckon it can't be too bad if what I've read on here is true. All SM oils are at least Group II+.
Some pictures of it:
So here comes the question. If every SM oil is good, who would feel comfortable running this oil for 5k mile OCI's for their whole engine's life? I'm not saying it wouldn't do it, just curious. I know I wouldn't really want this stuff in my vehicle, that is, if it didn't have a consumption problem. Oddly, on the back, it says it is "Excellent for TURBO-CHARGED gasoline and moderate duty diesel engines". Wow, kind of sounds like a good oil. At least a pretty stout oil. I reckon it can't be too bad if what I've read on here is true. All SM oils are at least Group II+.
Some pictures of it:

