Floyd
Well-Known Member
After many years of fleet experience, we went to changing oil on in plant field trucks just once a year without regard to mileage. Many of these trucks idled all day when they were not being abused.Unless you really are hard on your Ranger, 4-5000 miles on synthetic and a good filter (Motorcraft) is OK.
If your hard on it, like off-roading or towing long distances, frequently carrying heavy loads, I'd go 3-4000 miles.
Changing at 3000 miles is throwing money away.
I changed my OE oik at 3000 miles, and next is planned at 7500-8000, and I tow a 6800 lb travel trailer every 2-3 weeks.
I repaired/replaced lots of broken differentials, lots of automatic transmissions, chassis components, brakes, wiper arms, door hinges, steering columns, alternators, wiring harnesses etc.
Plenty of engine repairs,such as head/intake gaskets fuel injection & pumps..... almost never anything oil related!
My Point?? If you plan to be "really hard on your Ranger" then oil change intervals will be the LEAST of your worries.
Our fleet trucks generally left the fleet still running , but really no longer worth fixing.
My personal vehicles leave my service in good, safe, and serviceable condition, so in that case, oil change intervals really do matter.
How well you plan to maintain/treat the whole truck matters when deciding how often to change the oil.
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