I currently have a Premium Guard made Napa Gold 7502 on my F150 with no complaints and will definitely use more from here on out. My question is, are all three brands made by the same company? And where is the best place to buy these filters for the best price? Will the regular filters suffice or should I be looking at the Premium Guard Extended version and EcoGard synthetic? Not sure if Prime Guard has a syn filter. Thanks. Very impressed with all the filter pics ‘53 Stude has posted of any of these brands. Solid construction