How much maintenance do trucks from the 90s need? I know very little about cars.
If you don't know anything about car maintenance, there's a wealth of videos and forum for old diesels. For me, it's the 12 valve cummins. It takes 3 wires to run it. Perfect for an EMP scenario. For a truck like that you'll need to:
-Grease the drive line and suspension components occasionally (seasonally?)
-Change the diesel fuel filter every time with the oil filter
-Adjust the valve clearance occasionally (I do this annually on most vehicles, but I'm autistic)
-Change the transmission fluid, differential(s) fluid, transfer case fluid if applicable
-Rotate tires (seasonally for me. Depends on how many miles you drive)
Or just don't listen to me and get a Full Service Manual. Free online and at the library. They normally have a detailed chart on exactly what preventative maintenance you need to follow for what driving conditions the vehicle endures.
If you're trying to CIA proof yourself learn how to run WVO (waste vegetable oil). You can run your truck on the stuff that Chinese restaurants, diners, and donut shops normally have to pay to get rid of.
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