Throw a match on it. Not the entire 4.5 gallons though.
From the manual. Of course open to interpretation is the part that says "if necessary".Ha ok guys. You are the 1%ers! For good or bad I’ll stay indifferent lol. Only about 3-4% of owners are in this type forum, and of that few only a minority are crawling under their $80k truck to drain fuel on a monthly basis lol. But I agree your safe if you do it monthly for sure, I’m just not doing that. If it’s truly a requirement that I come to learn about then I’ll get rich in the lawsuit. Nobody told me about that at purchase. This is my fourth diesel and 6th superduty so don’t mistake me for somebody new to the game. But monthly is a fools task. Since nobody was quick to answer my question on what ford recommended, then I’m forced to check my owners manual. Whatever that says I’ll stick with. I’m guessing 10 or 15k
I live in the great state of MN where they mandate a minimum of B5 during winter and I think we go up to B20 in the summer months.
Maybe thats what you got going on. I always run Howes winter treat and summer treat in every ounce of fuel I put in my diesels just because of all the above reasons.
Its funny - gasoline has all these minimum octane and super additives that are promoted for people that drive around in a $25,000 car but when it comes to diesel no one knows anything about what they are getting. Does it have biodiesel? how much percentage of bio? what cetane rating is it? what about the lubricity of it?
You'd think consumers would start demanding a minimum standards certification for the the fuel that they are purchasing to dump into their $100,000 investment? but no, we just blindly go and pump it in and woddle on our blindless way.
Like I said before, I do a quick one cup dump every month and run a additive year round because I worked my dirty little greasy but off on overtime to be able to even afford my $50k truck. The last thing I need to happen is get a bad slug of fuel, go to dealer under warranty and get denied a claim because there was water in the fuel that trashed my high pressure pump and injectors.
Diesels are not for everyone anymore, gone are the days of them running on anything you throw in them. These engines are extremely complicated and I am going to make sure to do my part in taking care of it. Oil change every 5k with Ford approved oil, fuel filter change every 15k, coolant every 30k, trans drain and refill every 15k, transfer every, 60k, diffs every 100k.
I did a drain / filter replace/ refill at 60K miles. My plan was to drain and refill at 90K (take a sample and have it tested) then drain and replace filter at 120K. Or take a sample from the dip stick at 90K and proceed from there (leaning toward this for now).Yes, you heard it right. Tranny every 15k. I don't bring it in to get it flushed I just do it at home.
...drain and refill is the best preventive way to keep a good tranny fresh for the life of the truck. Flushing can promote some bad things inside these trannys.
Thanks, I like your logic I’ll prob do around 75k and do the drain refill drive drain refill method.
Is the DEF tank connected to the fuel tank in any way? I haven’t traced out the piping to see. I haven’t even used much DEF in the life of the truck so that would seem unlikely unless someone added def into the fuel tank by accident. Just strange and I’m trying to investigate exactly what occurred to prevent it in the future.Maybe it was DEF?