Originally Posted by badduxx
Originally Posted by rossn2
Please show me documented proof of ANY oil maker that warrants their oil for more than 12 months....
All of them, under their warranty, state You must change the oil atleast every 12 months, regardless of car OEM recommendations.
So, if you're engine blows up at 15 months who is gonna pay for replacement?
Here's is Mobil 1:
What the period of coverage is:
The Mobil 1 limited warranty is valid for 10,000 miles or your vehicle's OEM recommended oil change interval, whichever is longer.
Additional requirements for all Mobil 1 products include:
Oils must be put in service not later than five (5) years from the date of purchase; and
an oil change must be completed every twelve (12) months.
Amsoil:
AMSOIL Signature Series Synthetic Motor Oil provides reserve protection, allowing you to go longer between oil changes if you choose - up to 25,000 miles, 700 hours of operation or one year, whichever comes first*.
These warranties were one of the inconsistencies that prompted me to ask the question on this forum. Going the 2 years doesn't bother me personally. If they recommended never I would do that and just keep it full lol. Considering the extent that people beat the crap out of their cars and don't take care of them and lots of cars are still out there running, I doubt following the owners manual is a huge mistake.
The oil company just don't like the idea that they won't see you again in 2 years. That is why even Amsoil won't go beyond a year. If it can go 25,000 miles, then it sure could last longer than a year too.