I would use with no hesitation at all, especially in your location. I use 15w 40 HDEO in gasoline engines on occasion (whatever is the best sale price), as my locale rarely gets below freezing over a week or two a year.Is it okay to run Mobil Delvac 1300 super 15w40 in 3800 V6 motor? The price is so cheap. Is running diesel oil in 3800 V6 a bad idea? I live in Rio grande valley, South Texas.
Mr. Kschachn. You of all people should know that the API does not issue a “ SN license” anymore. A 40 grade diesel oil may receive a SP but only if has less than a 800 ppm phosphorus concentration. If Mobil wants to still have SN on their bottle it’s up to them. Shell removed the SN from their 40 grade motor oils with more than 800 ppm phosphorus.It's dual-rated with an API SN license.
Does your engine burn oil? I personally wouldn't worry about it unless you have bad rings, and then you've got bigger problems to worry about. Just my 2 centsAs per the consensus it seems like it will be fine for the engine but I wonder if the catalytic converter will go bad due to the high zinc content in the oil.