Did you just add it to the 6 quarts, or did you substitute the measurements?

 

i think you would substitute the measurement so not to over service.

 

I put 5.5 quarts and put the 6 cyl restore in, i ran it every other oil change

 

fuel injectors dont like fuel additives they mess up the seals and orings and electronics

 

Some do. It's safe to use Techron.

 

I'd like to see someone do a long term test on these things. MM oil, seasfoam, whatever. Someone needs to get two 0-mile engines, and run both to 250,000 miles. One uses product X and the other uses nothing. Crack 'em open and take pics. That would be a good comparison.