weslangdon Posted November 19, 2015 Report Share Posted November 19, 2015 (edited) my problems with the Arosa SDI have re emerged, it's actually running more smoothly and pulling better the more often I use it, however the oil pressure buzzer has started flashing and going off in a random manner. Oil levels are fine and I've recently changed both oil and filter.This is puzzling me and suggests a fault further up the line, any ideas anyone, the oil is a semi synthetic allrounder rather than specifically for diesel Edited November 19, 2015 by weslangdon Quote Link to comment Share on other sites More sharing options...
stevenbmkiv Posted November 19, 2015 Report Share Posted November 19, 2015 Have you changed the oil pressure sensor?Have you run any diags to see what code comes up? Quote Link to comment Share on other sites More sharing options...
Skezza Posted November 19, 2015 Report Share Posted November 19, 2015 I'd be using synthetic personally, but there we go. Quote Link to comment Share on other sites More sharing options...
carrera-gt Posted November 19, 2015 Report Share Posted November 19, 2015 Modern synthetics are way too thin for lupo engines bearing clearences, If you're going to use a non diesel oil you will need to change it much more often as diesel leaves more cobustions products in the oilAlways worth putting in a pressure guage in these sitiuations.then you can check operation of the sensors and cold and hot pressures per the specs 1 Quote Link to comment Share on other sites More sharing options...
weslangdon Posted November 19, 2015 Author Report Share Posted November 19, 2015 when it first happened the engine was very thoroughly warmed up and I threw it into a corner, so made me think the oil level might be low, which it wasn't. The clock says 120k which is quite low for a 1998 car but rather than a synthetic I'll flush it, fit a new filter and use an oil recommended for older diesels Quote Link to comment Share on other sites More sharing options...
Skezza Posted November 20, 2015 Report Share Posted November 20, 2015 Modern synthetics are way too thin for lupo engines bearing clearences, If you're going to use a non diesel oil you will need to change it much more often as diesel leaves more cobustions products in the oilAlways worth putting in a pressure guage in these sitiuations.then you can check operation of the sensors and cold and hot pressures per the specsModern diesel specific fully synthetic is absolutely fine. Trust me, I've been running on it for near 60k miles now. Quote Link to comment Share on other sites More sharing options...
carrera-gt Posted November 20, 2015 Report Share Posted November 20, 2015 Weslandon did say non diesel synthetic so might not be fine. 1 Quote Link to comment Share on other sites More sharing options...
weslangdon Posted November 22, 2015 Author Report Share Posted November 22, 2015 I did and the SDI is hardly a modern diesel is it Quote Link to comment Share on other sites More sharing options...
Skezza Posted November 22, 2015 Report Share Posted November 22, 2015 I did and the SDI is hardly a modern diesel is it no but still, run it on fully synth and you'll get all the benefits it brings. Quote Link to comment Share on other sites More sharing options...
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