How come gas vehicle engines don't burn oil?

[Jstpssng]

There is a lot more cars over 500k miles than you may think. I have seen at least nine Toyota vehicles with over 500,000 miles on them this summer, on used car lots in Dallas. Some of them look in very good condition for the mileage. But my son was not interested in any of them for his first car. I talked with one used car dealer, and he said 60% of cars just don't make past 15 years because of accidents.

A check on Cars.com showed 17 Toyota's, 2 Honda's and 8 Fords have over 500k.

Here a 15 year old vehicle which isn't completely rusted out is rare. I have a 2004 Ranger up in my field which I have to get rid of for that reason. I had planned to go below the "rust belt" when I replaced it, but the current travel restrictions made that difficult.

 

[rademamj1]

Here a 15 year old vehicle which isn't completely rusted out is rare. I have a 2004 Ranger up in my field which I have to get rid of for that reason. I had planned to go below the "rust belt" when I replaced it, but the current travel restrictions made that difficult.

Yep....I lived in NY for 25 years and I surely do remember now just how badly the car body damage from road salt can be. Somehow I just forgot about that salt impact on a cars longevity. Here in Texas, no salt to worry about, so we do seem to have more vehicles that survive to 500k miles. But as I said before, here its automotive accidents that seem to reduce a cars longevity.

 

[not2old]

Oil manufacturers make a difference to the amount of oil burned. Made the mistake of trying mobil 1 for diesels in my 2012 TDI Passat. For that 10000 mile change it burned almost a quart. Changed back to the dealer sold Castrol and went back to burning no oil between changes. Go figure.

I rebuilt a 429 Ford into about 472 and mild hop-up to about 450 hp in the 80's in my work truck. I was using Valvoline at the time and the fresh build was using a quart every 1000 miles. After discussions with my brother about his experiences with oil consumption, I switched to Pennzoil. Oil use changed to about a quart in 5000 miles. Been using it since.

 

[Grumpycat]

There are engines which burn one brand of oil another does not. Same oil which works in one engine may not in another while the oil that works in the other does not in the first.

When Subaru first started specifying 0W-20 many reported oil consumption using Mobil-1. Who knows why? But a few years later no one seems to be having any issue with Mobil-1. I do not. My Subaru is my only vehicle using 0W-20.

 

[Jstpssng]

I've had similar experiences with Valvoline. I was away from home and long overdue, so took my truck to a local shop who used that brand. The engine suddenly started using so much oil that I began to wonder if they had actually changed it. My next oil change I put Castrol back into it, and the usage stopped. That was on 4.3 GM engine which was pushing 200K at the time.