I just bought a can of BG 44K recommended by my service advisor I dont usually use cleaners but with 123,000 on my 05 thought it might be worth it to try and clean it up I am going to put a new fuel filter before using but was wondering if I can add it at half a tank and fill it up from there all it says is it treats 20 gallons, not when or how to add it. The dealer said he could do fuel induction service BG for 150.00 would clean TB.
Thanks
Dave

 

Thats good stuff, I usually put in 2 cans twice a year (have a big tank). If it were me I'd probably run it thru before changing the filter. Just my preference
but never know, it might knock some crap lose in the tank and the filter would catch it.