@VolvoV70 Priorities , priorities!!! An accident investigation of a recent high speed crash revealed the car had bald tires but the driver was wearing a designer jacket and wore expensive Italian designer shoes1
I am so happy to see another synthetic oil thread.
I will do my part to keep it alive.
@melott I am still debating detergent vs non-detergent oil and multi-viscosity vs single weight oil. Let’s keep the synthetic vs dino oil going while I resolve these other issues.
Maybe I’m just reacting to my childhood but in 1958 my dad used to buy his oil for our 58 Chevy at the farm store. Came in two gallon cans. Don’t remember what the brand was or if it was detergent or non-detergent. I do remember a conversation or two about which to use though. I’m sure it was great for tractors and I guess seemed to do ok for the Chevy. So maybe any old oil was ok. I’m still trying to remember how he got more oil when he didn’t put the drain plug in. I don’t think he had enough on hand and I don’t think he walked a mile to the farm store. Maybe he did have enough and the verbal barrage was just for wasting a few quarts.
At any rate before I change oil, I always have at least two filters, and at least enough oil for two changes on hand. I also mentally check off putting the plug back in and tightening it. If I’m day dreaming and can’t specifically remember doing it, I have to go back under the car again and make sure. I only use name brand oil though. Maybe silly but we are products of our past. I also only use new oil on the filter gasket. Drives me nuts to see someone dip their finger in old oil to oil up the gasket. And my psychological profile is ______. I didn’t get into body work until the 61 Chevy though but that’s another thread.
A kid across the street had the cheapest dad I knew.
He would go to a service station, get enough oil drained from other cars to do his oil change.
When I had an oil burner 57 Chevy (30 miles to the quart) I bought oil at Workingman’s Friend. It was filtered oil drained out of cars. 10 cents a quart. I kept a case in the trunk.
My 1948 Chevy was my college car and it gradually used more oil as it aged. I kept a case of “re-refined” oil in the trunk. It cost 17cents a quart and seemed to do the job. his stuff was straight 30 grade with no additives whatsoever.
The Chevy “stove bolt 6” had low compression and only 90 HP I believe and no part was really stressed.
I still changed oil every 1000 miles along with a filter. But at 1 quart per 400 miles consumption I was really changing more often, so the oil was seldom really dirty.
Barky, that’s beyond cheap… that’s downright foolish!
Whatever fluid is in the lubrication system has to have the capability when at operating temperature to maintain a pressurized fluid barrier between the sleeve bearings and their corresponding surfaces on the crankshaft while the crankshaft sustains many thousands of lateral jolts from the connecting rods, perhaps its most difficult job in the whole engine. Or maybe maintaining that fluid barrier on the rod bearings is tougher, I don’t know for sure. Using used oil of unknown original viscosity that may well be diluted and contaminated with combustion byproducts from someone’s worn out engine is just plain foolish. Your friend’s dad may have been a great guy, but he certainly knew nothing about cars.
I thought so also, but reading the above posts, not sure if it was filtered, but not an uncommon practice evidently. @“the same mountainbike”
Anti Foulers must really have been common at one time .
I once had a riding mower that decided to start consuming oil and an INSANE rate one day. It had been giving me lots of issues so I pretty much gave up on it at this point. I kept it going about another season by using old oil drained out of my cars. It finally got so hot one day that the oil began to boil and pop in the crankcase, then it locked up tight. The paint on the outside of the engine was popping off and smoking. You could feel the heat radiating off the thing. I don’t think the old oil was the issue. The fact it burned the oil at a faster rate than it burned gas was the issue.
Yeo, 9 pages and counting on synthetic oil again. Its worth it though. Either I’m more correct than before or everyone I disagreed with has left in frustration.
Just be glad it isn’t a discussion about politics, religion, guns, etc.
Donald Trump uses synthetic oil.
The big H is driven everywhere.
@melott In his hair??
Hillary Clinton would force us all to use re-used oil.
Please don’t turn this into another political thread… 
Maybe there is Republican oil for conservative cars and Democrat oil for liberal cars. If so, these two oils shouldn’t be mixed in the same crankcase.
Not tell me what oil do you put in a Prius that has Trump bumper stickers?