2014 IS350, manual says 10,000 mile OCI, but my light usually comes on around 5k no matter what oil I use. This got me wondering how accurate the monitor actually is, Lexus OLM information states:
Quote:
"Smart technology, like the Oil Life Monitor (OLM) system, automatically monitors the oil life in your vehicle using an advanced algorithm, on board computer system that alerts owners when it’s time for an oil change, so they can address the issue promptly and without hassle. When the dashboard light is triggered, indicating “OIL MAINTENANCE REQUIRED,” all the owner has to do is schedule an appointment with a trusted mechanic, take the vehicle in for servicing, and a mechanic will take care of the rest; it’s that simple.
How the Lexus Oil Life Monitor system works and what to expect
The Lexus Oil Life Monitor (OLM) system is not a simple oil quality sensor, but a software based, algorithm driven device that takes into account various operating conditions of the engine to determine when the oil needs changing. The system measures the engine oil life by three criteria: crankcase temperature, combustion chamber conditions (how the engine performs), and moisture (internal/external environment). The algorithm is able to adjust the oil change interval given these variables and will give the owner an accurate reading of engine oil life within a five percent margin of error."
5% accuracy is pretty astounding. I've used magnatech, supertech, mobil 1 and the light goes off within 100 mile difference in all oils and there are certainly quality differences between those oils, which leads me to believe the OLM is all [censored]. Anyone? I'd like to run an oil to 8,000 miles and get a UOA done but if it's going off 3,000 miles before that and it's accurate then that's a no go.
Quote:
"Smart technology, like the Oil Life Monitor (OLM) system, automatically monitors the oil life in your vehicle using an advanced algorithm, on board computer system that alerts owners when it’s time for an oil change, so they can address the issue promptly and without hassle. When the dashboard light is triggered, indicating “OIL MAINTENANCE REQUIRED,” all the owner has to do is schedule an appointment with a trusted mechanic, take the vehicle in for servicing, and a mechanic will take care of the rest; it’s that simple.
How the Lexus Oil Life Monitor system works and what to expect
The Lexus Oil Life Monitor (OLM) system is not a simple oil quality sensor, but a software based, algorithm driven device that takes into account various operating conditions of the engine to determine when the oil needs changing. The system measures the engine oil life by three criteria: crankcase temperature, combustion chamber conditions (how the engine performs), and moisture (internal/external environment). The algorithm is able to adjust the oil change interval given these variables and will give the owner an accurate reading of engine oil life within a five percent margin of error."
5% accuracy is pretty astounding. I've used magnatech, supertech, mobil 1 and the light goes off within 100 mile difference in all oils and there are certainly quality differences between those oils, which leads me to believe the OLM is all [censored]. Anyone? I'd like to run an oil to 8,000 miles and get a UOA done but if it's going off 3,000 miles before that and it's accurate then that's a no go.
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