Sea Foam
I have used Sea Foam for a long time and it is truly a great product, put some in the oil and just once in the tank, My dad uses it in his Diesel and he has never had his truck run any smoother.
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Top of my list. Use it one a year in my oil,run it about 50 to 100 miles than change oil. What a diference it makes !! when i first used it i had a tapping in engine when I would first start it up for a couple minutes. After using Seafoam on oil change noise gone and has not came back since, also fell slight power increase!
Pretty sure on the bottle it has a suggestion of 1/3 in your tank, 1/3 in the crankcase, and 1/3 through the intake (brake booster vacuum hose). And yes, you just put it in the oil fill spot.


