Using the RedLine gas additive

[zman]

I purchased the Red Line Gas Additive.
When I read the instruction, it has 8 markings showing that each section should be mixed with 10 Gallons of fuel.

Since a full tank in my car is about 14 to 15 gal of gasoline, should I add one section at a time?
or, I could give half a bottle (4 section) for several tanks?

Will it hurt the car if I used half a bottle for several tanks of fuel?

any thoughts, or ideas?

 

[Big Daddy]

When I first started using Redline SI-1 Injector Cleaner I used half the bottle. Now I add one 10 gallon mark each about every other time I fill up. It will not hurt anything to use more or less than the marked amount.