Maybe on HPL but that's about it
follow manufacturers oil change recommendation is a disclaimer every oil brand container says. even amsoil has it in their limited warranty.
I’ll give them a guarantee of my own - I positively 100% guarantee I will never be doing this. (Leaving oil in for that long..)
If I was driving 1000 miles a week I would have absolutely no problem running an oil for 15,000 miles, with used oil analysis to back it up of course. Although I would not do it with this vanilla Mobil 1, I’d do it with EP.
That makes good sense, it's the same marketing conundrum as Mobil 5000 being "allowed" to go 7500, 10k, or per OLM. How do you market something as suitable for OE replacement if the OE says go longer? You don't want to self-sabotage one product to promote the "better" one.
UOA would be close to the cost of the oil.
This. I think many people forget how easy long highway miles are on oil. I could easily see most SP or SQ oils being able to handle 15k miles if they were long, easy highway miles. 1000 miles a week will get you to 15k in less than 4 months.
I came here to say that.
Market positioning, which is a huge part of marketing.
Your point being?used oil analysis would be close to the cost of the oil.
