I have noticed in the newer Briggs Operators manual they include a Vanguard Synthetic 15w-50 motor oil option on the oil chart. It is marketed to commercial use. It claims to reduce oil consumption. I am asking because I have an older Quantum engine on a walk behind that burns a bit of oil. I have concerns of fouling the plug. Would this be better than the recommended SAE 30 oil on an engine that burns a bit more oil than normal.? I assume any 15w-50 synthetic motor oil (i.e. Mobil 1)they have at the store will be close enough and there is nothing particularly special about this Briggs Vanguard branded oil. Maybe it has a bit more zinc. Again, my interest is in addressing excessive oil consumption and somewhat concerned with potentially fouling the plug prematurely. Would it be easier to start on a colder day too? I assume so.
https://www.briggsandstratton.com/na/en_us/products/other-products/vanguard-oil.html
https://www.briggsandstratton.com/na/en_us/products/other-products/vanguard-oil.html