Hello, In my brother’s first car, the 1951 Olds 2 door sedan, we were changing the oil every 5000 miles. He drove all over the place because it gave him some first time, teenage freedom. His group of teenagers all did stuff together and cruised to the mountains, beaches and Mexico. But, when he got the new 1958 Impala in late 1957, we changed the oil at 3000 and put in the good old STP additive for more protection during the drag racing episodes. The filters, air and oil, also got changed regularly. Changing oil was a valued teenage thing to do. It was my job as a pre-teen to get that done at home. How many times did I use that pour spout to poke a hole in one end? Endless… When I started to drive the Impala, I drove over to a friend’s gas station work place to use the lift and buy his oil. It was much easier. But, most of the Impala maintenance was done at home, and sometimes at the high school Auto Shop. 1962 high school in the alley next to the Auto Shop The 1940 Ford Sedan Delivery was another story. It needed oil like it was going out of business. A can of Valvoline almost every other day was used. I took it all over to an expert Flathead mechanic and to my dad’s expert in Los Angeles. (even the Autoshop teacher) They were completely puzzled as the Flathead did not show any leaks on the motor, trans, or any fittings. I kept that motor pretty clean and sanitary. There was no smoke coming out of the exhaust, either. So, where was the oil going? They all felt badly for me and my dad’s friend gave me a case of oil as a consolation for being stumped in the mechanics. I needed several cans to get back to Long Beach from Los Angeles. Jnaki I found out that a gallon of reclaimed oil was a lot less expensive than a can of Valvoline. So I “changed the oil” almost weekly as a daily driver. On those long 100 mile, two way surf trips to South Orange County, I had to pour in at least a gallon to get back home. That was the strangest thing we had ever encountered in our hot rod years. My spare tire got less of a workout than my spare gallon of reclaimed oil for those long surf trips up and down the coast. There was always some gas station that had reclaimed oil, just for that purpose. I must have been the only person driving around with a spare gallon container of reclaimed oil behind the seats. On one of our 100 mile South Coast OC forays to the secret military base surf trip, we parked in a secure location near some homes. As we left, the sedan delivery looked like a normal neighborhood car, parked as usual. When we got back for lunch, the passenger door was ajar. The rear door was also resting on the locking mechanism. Something was not right. Upon inspection, we had been robbed. All of our clothes, shoes, jackets and lunches/drinks were gone. My friends lost their wallets, but I had my wallet in a sealed plastic sleeve taped under the seat. The only thing that was left inside of the sedan delivery was a gallon of reclaimed oil for the long trip home. I guess those robber/idiots did not know the value of a gallon of reclaimed oil.