6% fuel in oil - scared for my injectors

[npauli]

Thanks for the feedback guys.

Mark - I've been using PowerService (white bottle) in the winter but nothing in summer. I'm shopping for a good lubricity & detergent additive.

Kennedy - No tuning of any kind.

I'll see if my uncle can read balance rates, etc. with his scanner next time I stop by his shop. Oil analysis is cheap compared to replacing anything (even the oil), so I'll probably just keep checking the dipstick and pulling samples for a while to get a feel for the rate I'm making oil.

[Mark Rinker]

I'd hit it with some heavy doses of FPPF, Howes, etc.

I have successfully freed up sticky injectors on more than one LB7 by running 1qt of ATF per tank for two or three tanks, but some people will scold me for doing so, here. Never had any bad outcomes.

Maybe you'll get lucky and your dribbler will start spraying again.

[madmatt]

At the dealership we had a fuel system service that i cured several balance rate issues with. Check with your local dealer and see if they have a similar system available. Ours actually disconnected the fuel lines too and from the tank and then ran a concentrated cleaning solution through the system. worked great!!

[npauli]

Update:
I've got 2k miles on fresh oil, and just did another oil check: 3% fuel this time. That doesn't sound like a good sign. With warmer weather and no bio, I was hoping the rate of fuel going in oil would slow down or stop (I got 6%/10k on the last oil).

My next steps are:
1) I'm going to try a fuel system cleaner - they've got a new one at work (CAT) that sounds like it might be worth a shot.
2) I'm going to bring the truck into the shop for a checkup. Remind me again what can and should be checked?

injector balance rates (at low idle?)
command rail pressure to max and see what you get?
measure return rate via bucket & stopwatch right? At low idle? Disconnect at the cooler?