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My E-250 now has 130,000 miles on the odometer and the spark plugs have not been changed. The van is running good, no cylinders missing and good mpg. I put Lucas Fuel Treatment every 10,000 miles which also cleans the heads. I have heard horror stories about removing these sparks plugs...

Has anyone used this in either the their gas or oil? Other than the hype, is there any advantage?

Has anybody installed Airtabs on a cargo van? Do they work as advertised, or are they just another gimmick? Home : Airtab

I have changed to a K&N air filter to help the mileage. which helped a little bit. I have been told that until I put a muffler that flows better, I won't see any real mileage increase. Is this true, or just somebody trying to make a sale? I have the 4.6 liter engine w/ a 4.10 rear-end. I...

What is the difference between a vehicle designed for E85 and a non-E85 vehicle? My 2008 Ford 406 liter E250 has the gas cap that says to not use E85, but also in the owners manual it lead one to believe that some were made to use it. I have found E85 conversion kits on the internet, and from...

I'm getting 16.0 to 16.25 mpg with my E250. It has a 4.10 rear end gear, and the 4.6 liter engine. The only thing I've added is a K&N air filter, which didn't help much that I can see. I'm debating going to a 3.73, 3.54, or a 3.24 rear end gear to help the mileage. Does anybody have any...

Has anybody heard about spark plug holes stripping out when changing spark plugs, in a Ford vehicle? I found this Service Bulletin TSB 07-21-2 . :eek: __________________