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Does "Change Oil" alert earlier if "severe" driving?

Does the system sense higher engine stresses and speeds and advance the change oil interval accordingly?
Though I try to be as gentlle as possible, the worst trip was a 169-mile emergentransport to a hospital in the mountains.
Another was113 miles and another 73 miles
Seems that I changed the oil and filter less than 3,000 miles ago, (I did not record the mileage.) but the indication has already reappeared.
Thank you.

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After reading several stories about accidents, deaths, and law suits (up to $7 million) involving speeding “emergency” drivers, I’d be more concerned with adequate insurance than with frequency of oil changes or tire pressure monitors.

CSA

"Seems that I changed the oil and filter less than 3,000 miles ago, (I did not record the mileage.)"
Another made up situation then. You definitely have way too much time on your hands.

A few older systems just put the light on every 5000 miles (or 3000 miles), but most of them now do account for driving style.

"After reading several stories about accidents, deaths, and law suits (up to $7 million) involving speeding "emergency" drivers, I'd be more concerned with adequate insurance ..."
I'm more concerned about preventing any mishap than the insurance covering it. Passing traffic, I'm only about 10 mph over the posted speed limit - depending on conditions.
most of them now do account for driving style.
Thank you. That explains why the notice seems early. To be gentle on the engine and to save fuel, I normally go up these 65 mph passes at 50 mph - always in the right lane. On the emergency transports the Expedition was 10 to 15 mph over the speed limit against strong headwinds with the accelerator almost floored.

It has occurred to me that the ECONOMY light on many cars, which is controlled by manifold vacuum, is the determining factor in the MAINTENANCE DUE calculation. But that is based on limited observations of 3 automobiles. Has that occurred to anyone else?

Rod–I think that the earlier versions of these maintenance indicators may have worked as you describe, but the newer ones apparently use a fairly complicated algorithm that factors in cold starts coupled with cold shut-downs, short trips, amount of idling, and other types of use that reduce the life of the oil in the crankcase.

It varies by vehicle. My buggy simply goes by miles traveled. Fancier buggys use algorithms. I’m betting that newer econoboxes go by mileage, just like mine.

My econobox (2010 honda fit) at a minimum goes by some formula based on engine rpm plus accounts for severe/regular conditions. Other maintenance items are a function of number of oil changes (ie, at the 6th time the minder pops up, it will indicate to do a transmission fluid change). Unsurprisingly, the best answer to the original question is to check the manual.

These systems are supposed to factor in how hard you accelerate, engine temperature, ambient temperature, and probably a bunch of other factors. But they can’t tell things like how dusty the environment is, or the quality of the engine oil you buy. Also, at least one manufacturer has been burned by their own system and ended up doing some engine replacements for customers that were misled into not changing their oil for longer than they should have.

I would consider what the system recommends, but not go any longer than 5,000 with conventional oil or 7K with synthetic unless you have an oil analysis done or drive mostly highway miles.

The UOA that I’ve done show the numbers are about right, ie indicate to changes before the oil accumulates to much wear material, tbn becomes exhausted, etc. based on blackstone’s analysis, when most drivers hit 0% “oil life” left, the oil could go at least another 2000 miles.

It varies by vehicle. My buggy simply goes by miles traveled

Maybe the newer Toyota’s use a different oil monitoring system. But 05 4runner and wifes 07 Lexus is just like @MB…Strictly mileage. Every 5k miles.

I don’t know how they work, but mine comes on occasionally after 2000 miles. I mean it might come on once a week.

Considering the way Robert admittedly drives, I would recommend replacing that oil when that light comes on.

Note that here he said when passing, he runs only 10 or 15 over other cars. But, over the years he has admitted he runs up to 100mph when there are no cars near him.

Change the oil, Robert. Change the oil a lot. Oil is cheap.

"Considering the way Robert admittedly drives, I would recommend replacing that oil when that light comes on."
I drive very gently, accelerate gently (always in the right lane so others can pass - they do!) and I drive closer to 55 mph.

When a mountain hospital calls for red lights and siren transport, thExpedition is going up grade sometimes against strong headwinds. So there is a lot of load and stress on the engine.
Somemergentranports have been 167 and 201 miles and over two passes. The Expedition is cruising smoothly at 95 mph and the hospital calls asking where their blood is!
It seems as though the computer detects the abuse and advances the oil change interval.
Or is it just mileage?