I use fram filters in my airbox and changed them every 5k when I do my service. You probably bought a truck to haul, tow, mud, hunt, fish, camp, or just have fun with. I would really like a 5 speed manual if possible. This is a great upgrade to do in combination with an upgraded exhaust mentioned above , because the stock air intake with rob your air-hungry 7. .
And between 1800 and 2200 rpms based on wind hills etc. But they are… Dirty air filter, can contribute to poor mileage. You will not believe the air difference. The earlier 'Strokes have less aftermarket support, so be mindful when buying, if tuning is in the cards. I'm not sold on any of the freshair systems unless the truck is heavily modified.
Three warnings will result in a ban. I found slowing from 65 to 55 made a big difference. Anything over 2000rpm is just waisting fuel with these engines. Another key to mileage is how you drive it. My wifes Toyota gets the exact same miles from my door to my work.
Only way it would be left hand thread is if it's stamped on the fan shroud. My 03 Duramax 2wd gives 15. And whenever we don't need the trusty Ford Powerstroke 7. I'm sure there's a second filter somewhere, maybe that's the one somewhere behind the air cleaner???? Now is the 350 a dually? So about every third , 15,000 miles in my case, I swap out my air filter with a new one. Winter with short runs and some warm up time I get 10 to 13. Sorry now I am back, Yes I do get 26 mpg.
This may also be a cause of poor performance. I say test, because the guy who did it said it was no fun to drive like that and went back to normal driving and was back to 19mpg in a heartbeat. Cold weather fuels will definately cut your milage as well. Melisa is right keep it oiled up. Unloaded, in town, my 2000 F250 gets about 14 with easy driving.
If you don't absolutely need it, leave it off. I have boyz to haul and have to have the crew cab so it is the perfect truck for me. Using their tools I got a lump sum average from tens if not hundreds of actual 7. They weren't pretty, but they got the job done. So, if you want better 7.
It is ok to use but not with the stock air box it will not seal right and cause dusting of the turbo. I'm talking about big-truck-on-rollerskates tiny. And that's no forum exaggeration. I'm not talking once a year either. Because rather than spending a few hundred on a new air intake, why not just get in the good habit of maintaining what you've got.
Next rather than tearing the truck down get some injector cleaner and run… From 17-19 two wheel drive on the highway. That will tell if one isn't firing. I know it's not fun, but it's certainly effective, not to mention a cheap upgrade. Personal best is just over 22. Can any of you other guys help me on trouble shooting or ideas what I can do to improve this? I recently put in a 3. Offensive comments will result in a warning.