I'll try and post a picture, but I purchased a quart of Napa Full Synthetic oil since it was on sale.
I looked at the back and saw that the donut mark said API SP on it. Which includes the specs for SN+ and SN.
The last time I bought Napa oil a few months ago, It just said API SN on the bottle.
I looked at the back and saw that the donut mark said API SP on it. Which includes the specs for SN+ and SN.
The last time I bought Napa oil a few months ago, It just said API SN on the bottle.