What is the normal oil pressure for a Lexus UX?

[VanNathan]

Lexus UX gasoline engine oil pressure varies depending on the age of the engine. For a new car, when the engine is at normal temperature and idling, the pressure should not be lower than 1.5 MPa; during normal driving, it should not be lower than 4 MPa. For an older car, the oil pressure is usually slightly lower than that of a new car. Below is relevant information about oil pressure: 1. If the oil pressure is too low, it will disrupt the engine's lubrication conditions, leading to poor lubrication, cooling, and cleaning, which can cause parts to stick and wear. Excessive clearance between the crankshaft main journal and connecting rod journal and bearings, low oil viscosity, and a ruptured filter element can all result in low oil pressure. 2. If the oil pressure is too high, it can also disrupt normal lubrication conditions. For example, excessive oil viscosity, deteriorated or gelled oil, clogged filter element and oil passages, and improperly adjusted or stuck pressure relief valves can all cause excessively high oil pressure.

[LiamLynn]

I'm quite qualified to speak on this issue, having driven a Lexus UX for three years. Normal oil pressure at idle is around 1.5 to 2.5 bar, while driving at 2000 RPM it typically fluctuates between 3.5 to 4.5 bar. Pressure will be higher during cold starts, then stabilizes once the oil warms up. During my last maintenance, the mechanic measured with a mechanical gauge - my 2.0L hybrid model showed about 3.2 bar. If you see the dashboard pressure light flashing or readings drop below 1.2 bar, don't push it - shut off immediately and check, it's likely an oil pump or sensor issue. Remember to use 0W-20 full synthetic oil, as incorrect viscosity affects pressure too.

[DavidFitz]

I've been tinkering with cars for a decade and know Lexus specs inside out. The entire UX lineup uses the M20 engine, with oil pressure standards requiring at least 0.8 bar at hot idle, while maintaining 1.8-3.5 bar during normal driving is considered stable. Last year when helping a fellow owner with repairs, I saw scanner data showing his UX250h registered 2.3 bar at 60°C oil temp. Pay special attention during cold starts - don't panic if the gauge spikes to 5 bar, it'll normalize when coolant reaches 90°C. Modified oil cooling systems require extra vigilance; if pressure deviation exceeds 0.8 bar, best get it checked at the dealership.

[StAlivia]

Data tested on over a dozen Lexus UX models can tell you: When the engine is warm, a pressure gauge reading of 1.2-2 bar at 800 rpm idle is considered healthy. At 60 km/h, readings of 2.8-3.2 bar are more common. Once at a repair shop, I saw a UX with an alarm—its pressure dropped to 0.7 bar, yet it was still driven, resulting in cylinder scuffing and a major repair costing 20,000 yuan. The factory repair manual states the minimum warning line is 0.5 bar (hot idle), but in reality, you should be alert if it drops below 1 bar. In northern winters, cold start pressure can momentarily reach 6 bar—don’t be alarmed.

[DiAaliyah]

Just encountered this situation last week! The oil pressure warning light in my UX suddenly flashed red. The technician used an OBD scanner and found the pressure had dropped to 0.9 bar. It turned out to be a clogged oil pump screen. He mentioned this model has a fairly wide normal pressure range: 1.8-4 bar at 1500 RPM is acceptable, as long as it doesn't drop below the manual's specified 0.6 bar (critical limit). Here's a handy tip for daily monitoring - glance at the gauge when stopped at traffic lights; if the needle stays in the middle of the green zone, no need to panic. Remember, oil pressure drops faster from low oil level than from mechanical failure, so always have the technician check the oil pan seal during maintenance.