[RoninLB]

Hey Sean...you might find some good info in an old post/do a search..maybe a year ago...to my understanding most companies use the same base stock..then they add their formula when loading up the delivery truck..so a high test has more additives and less base stock in it than low test/less gas milage..also the color additives is what screws up plugs, I believe...and one day I was w/a Chevron sta owner who started talking about the Chevron tech who comes to test tanks for quality control..the owner said the itty bitty amount of techron barely registeres on the tech's meter...which is good enough for Chevron..................Ron