I have rebuilt a LOT of engines in new cars where people believed that oil life monitor. I mean a LOT! 3000 miles was and is the standard for a good reason. Especially if you drive in the city a lot.
The oil passages in these new engines, especially in the lash adjusters(used to be called lifters) is so small that if you saw one you wouldn't understand how even clean oil can get through them. Add a little sludge and carbon buildup and you got problems.
It's really best to stick to 3000 miles unless you are going to trade it in when the warranty is up.
That's why I will never buy another used car though unless I see service records on it from a dealer I trust.
That Oil life monitor is just based on time and miles. It has nothing at all to do with how the oil is actually holding up. I have done oil samples a lot in the past. In the Army, Navy and for a large civilian truck fleet. The Navy almost never changes oil. They just purify it and add new to make up for whatever is lost. Thats for ships though. The purification process is great.
The Army changes depending on the results of oil analysis on vehicles that sit a lot. Usually every oil sample I processed had more water in it than I cared for and was lacking in additives but we had limits that told when to change it.
That civi truck fleet changed oil about every 3-6 months. This is on engines holding 40 quarts though and rarely shut off. They may have 10000 to 50,000 miles on them but still it's synthetic oil and 40 quarts of it. Also they usually leaked enough that the drivers were adding a gallon or so ever couple days. That kept the additive package in spec pretty good.
I used to do samples on my truck engine. It was maintained in perfect condition for hundreds of thousands of miles and the samples always told me to change the oil around 3000 miles. That was usually 2 weeks to once a month for me.
In nearly 1 million miles I only had to do one minor overhaul on that engine.
If you really want to spend a small fortune on a new engine go ahead and follow that monitor. I have seen too much to go past 3000 miles on anything I own.
I haven't even gotten into which brands of cars and oil are more prone to going bad. I could though. I definitly have some good fact bast opinions about oil brands and car engines.
The oil passages in these new engines, especially in the lash adjusters(used to be called lifters) is so small that if you saw one you wouldn't understand how even clean oil can get through them. Add a little sludge and carbon buildup and you got problems.
It's really best to stick to 3000 miles unless you are going to trade it in when the warranty is up.
That's why I will never buy another used car though unless I see service records on it from a dealer I trust.
That Oil life monitor is just based on time and miles. It has nothing at all to do with how the oil is actually holding up. I have done oil samples a lot in the past. In the Army, Navy and for a large civilian truck fleet. The Navy almost never changes oil. They just purify it and add new to make up for whatever is lost. Thats for ships though. The purification process is great.
The Army changes depending on the results of oil analysis on vehicles that sit a lot. Usually every oil sample I processed had more water in it than I cared for and was lacking in additives but we had limits that told when to change it.
That civi truck fleet changed oil about every 3-6 months. This is on engines holding 40 quarts though and rarely shut off. They may have 10000 to 50,000 miles on them but still it's synthetic oil and 40 quarts of it. Also they usually leaked enough that the drivers were adding a gallon or so ever couple days. That kept the additive package in spec pretty good.
I used to do samples on my truck engine. It was maintained in perfect condition for hundreds of thousands of miles and the samples always told me to change the oil around 3000 miles. That was usually 2 weeks to once a month for me.
In nearly 1 million miles I only had to do one minor overhaul on that engine.
If you really want to spend a small fortune on a new engine go ahead and follow that monitor. I have seen too much to go past 3000 miles on anything I own.
I haven't even gotten into which brands of cars and oil are more prone to going bad. I could though. I definitly have some good fact bast opinions about oil brands and car engines.