Redline SL1
This contains the highest concentration of cleaning agent pea polyethelenamine. More than chevron techron and more than gunk with pea. If it doesn't have pea it is snake oil. The carbon will come out of your combustion chamber and mix into the motor oil so use in a tank right before changing your oil. Your oil will be dirtier which is good it means its doi g its job. This is the only effective fuel system cleaner. Ive spoken to engineers at Redline, gunk, chevron and royal purple. If you can't afford this use gunk with pea it will say it on bottle. Every car should have a clean fuel system. I use 1 bottle for 15 gallons of gasoline. About 1 oz per gallon right before changing my oil. With valvoline full synthetic 5w30 high mileage and either wix Baldwin , Hastings or k&n oil filter. This product is for real. You'll be glad you used it. 10 stars
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