Your neighbor is wrong here. Sending in a clip of a truck with no plates is not wasting anyone's time. No plates is like the number one sign of a stolen car or someone up to no good. The cops can run the clip through their system and figure it out way faster than some random person driving by could. Sitting on footage like that just because you worry about bugging people is how bad stuff slips through. You did the right thing, and your brother is way closer to the truth than your neighbor is.

Best car I ever owned" is facts. Those things run forever even when they look like garbage.

Did you ever notice how the old timers talk about oil the same way people argue about which gas station has the best coffee? My grandpa ran a tractor on whatever was on sale at the farm store for thirty years and that thing is still running on his neighbor's place. Meanwhile my uncle babied his with the top shelf stuff and blew a head gasket at 90k. That said, oil specs do matter for some things, like the newer trucks with the emissions junk on them. But an old mechanical pump is a whole different animal, it's just metal sliding on metal with oil doing its job. The spec sheet guys never want to hear that the cheap stuff works fine when the pump was built before everything got so complicated.