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In Reply to: RE: A guy I worked with... posted by ChesshireCat on May 12, 2022 at 23:32:51
...change the filter religiously, and the oil only every so often (like second/third/fourth interval). And cabs take a lot of abuse--mostly in-city driving, and hours spent idling just to keep the heat/AC running while parked outside of the airport, convention center or hotels.
I still don't know why auto manufacturers don't go with the "standards" used by heavy equipment manufacturers--hours, rather than miles. In heavy urban traffic, an hour of operation may be <2 miles. On the highway, an hour of operation may be 80+ miles. There's a huge difference in hours of operation between 3K miles at 2-5 mph, or 3K miles at 70-80 mph.
My equipment--front-end loader, Bobcat, tractors, and generator--all have hour meters upon which the maintenance schedule is based.
With more and more hybrids on the road, this is perhaps even more significant. Theoretically, with a plug-in hybrid, you could (depending on range and driving habits), drive it for days, weeks, or months without ever running the ICE engine--but the vehicle is still racking-up miles.
"So I talk to the night, I head for the light, try and hold it on the road. Thank God for the man who put
the white lines on the highway"--a very dear friend for decades Michael Stanley (Gee)--RIP
Follow Ups:
I'm told by those who should know that the oil life monitors most new veh have as stock take a number of parameters into account when determining "life". These including miles, overall run time (hrs), run time while cold, run time hot, # of cold starts, # of hot starts and time since last oil change regardless of the other factors. From personal experience I've concluded the oil life monitors are pretty much on the mark and that's what I use to determine when an oil change is due. FWIW, I change @ ~ 20% mostly to avoid getting to zero when an unexpected trip is required and oil change places are closed. I've evolved to a higher life form and no longer change my own oil on autos.
From personal experience I've concluded the oil life monitors are pretty much on the mark and that's what I use to determine when an oil change is due.
The Honda oil monitors in my vehicles usually triggers around 8k miles. My nephew who works on Hondas all day says that has been one of the best things for their business. Over time, the oil gets acidic and damages the valves.
I now use 4-5k or a year depending upon which comes first.
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