When I was growing up in rural Colorado, my family had a classic work truck: a 1980 F-150 with the famous 300 cubic inch inline six-cylinder engine. It was often my task to fetch a load of sand for mixing concrete, or landscaping soil, or lumber for some project. It was a great truck, with only one problem — the oil pressure relief valve was a little sticky, so if you started it up cold and let it idle, the oil filter would sometimes explode. You had to give it some throttle immediately to shake loose the valve, after which it would be fine. It was just one of those little quirks that you adapt to with a hard-used piece of equipment.
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