I will tell you a story. It’s related, but not exactly the same situation, however;
After I got my 290k plus Ford Freestyle on the road, (I bought it broken super cheap and fixed it) I ran a bottle of Gumout One ‘N Done through the a tank of fuel and had Idemitsu 5w-20 with a cheap filter on it. I knew I would dump the oil early and cut the filter to see what’s going on with this car. When I cut the filter open, there was an inordinate amount of carbon in the filter. It was a very surprising amount to me. I was glad that I went ahead and dumped it early.
The next oil and filter was Pennzoil Platinum 0w-40, and an orange can. Also planning to cut the filter early to see if it’s still loading the filter with carbon, I had 7 quarts on hand. So I filled it with 6 quarts, (capacity), Drive a tank of gas through it and cut the orange can open. Very tiny amount of carbon in this filter, so I topped the oil up and spun on one of my nice fancy Ford Racing FL-820S filters to finish out the OCI. Plan on running 5k like normal.
The moral of the story is if you have any doubts, it doesn’t cost much to cut the filter open to check to see if you’re loading it up by using some type of flush or cleaning agent, fuel additive or otherwise. I will say that I believe in the power of PEA fuel system cleaners, it was pretty amazing to see all the carbon knocked loose and caught in the filter. After all of this happened, I also pulled the intake off to put plugs and coils in it (it had an intermittent cylinder 1 misfire), and the intake valves and runners were amazingly clean. Maybe cut this filter open early and inspect it. You may be surprised what you find.
Last edited by 69Torino; 12/21/18 11:19 PM.