well with my truck having well over 260,000 miles on it, i get alot of pinging when i use WAWA(which is the cheapest usually). i did switch my oil to the valvoline high mileage oil when i got the truck almost 2 years ago, i did notice a improvement in ideling, running and oil consumption.

i just want to know personal experience not conjecture. thanks Brandini. i have noticed a major change in how my truck runs on shell compaired to wawa. no pinging better gas mileage. which not have a thing to do with Additives, but maybe how they make their gas?

whats this ScanGauge?