Cutting fuel costs

Use Lucas (no solvents) WHY? because with low sulpher fuel , you need a lubricant and cleaner (keeps Injectors clean) I used Marvel Mystery Oil in the old days , It was great , but its a red color oil-may get u in trouble (Marvel says no problem) with IRS , thinking you bought red dye fuel. Also get a fuel air seperator ($500) I like (F.A.S.S.) . Keep your engine running in its sweet RPM bracket . Cats like low rpms, Detroits like higher. otherwise they drink fuel like a hot-rod car!

 

yes high dessert dweller that would make large difference $ but not to sound like an idiot but i have alaways driven cats but recently bought a detroit and of course still running the foot pedal like a cat.so your saying higher rpm for better mpg? have been only getting 5.25 setting cruise at 65 and 1600rpm. would like to get 6mpg