Two series in this engine the later ones are known as PE or performance enhanced have a little more power and of course the 5.4 is stronger than the 4.6. Cam problems means it's a latter engine and the owner didn't use the recommended 5W-20 oil. Spark plug problems were more common in the earlier engines, the PE heads have a little more meat for the plug to stick to. Longevity? the 4.6 in the Crown Vic (a lighter version of the truck motor)- cab operators report it's not uncommon to go 500,000 miles. Gas mileage- I'm running a 01 2WD extended cab 4.6, auto trans, topper full of tools and the 3.55 gear. Last week from Green Bay WI to Superior WI about 16mpg regular no-lead with ethanol running at 70MPH when traffic will allow. From Superior to Peshtigo, same truck, next day on secondary roads (60 MPH) between 18 and 19. Best tank ever about 23 MPG. Normal beating it back and forth to work day in and day out 23 mile commute 15-17MPG. Mileage is down a little from when new but I'm also running 255 tires rather than the 235 it came with, but the speedometer is now accurate.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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