eMeS
Member
Sorry not rail related, but I hope someone here knows the technology behind my query.
I'm retired, and I've driven a Vauxhall Astra (petrol) for many years - fairly low annual mileage.
One of the popular outlets for motor oils offers a variety of oils both basic and "more refined"... By "more refined" the label suggests that the oil is specifically for my Vauxhall brand engine, and that if I was driving a Peugeot, I'd be advised to use a different(?) oil carrying a "Peugeot" label. What I've noticed over the years is that if < I > do the oil change, and put in Vauxhall labelled oil, the engine oil warning light stays "off". OTOH, when I've had my car serviced at a garage, I find the oil warning lamp comes "on", and sometimes well before I'm due for the next service. Topping up with "Vauxhall" oil puts the oil warning lamp out.
How does my engine know what oil is in use? Am I being short changed by the garage?
Thanks for any insights!
I'm retired, and I've driven a Vauxhall Astra (petrol) for many years - fairly low annual mileage.
One of the popular outlets for motor oils offers a variety of oils both basic and "more refined"... By "more refined" the label suggests that the oil is specifically for my Vauxhall brand engine, and that if I was driving a Peugeot, I'd be advised to use a different(?) oil carrying a "Peugeot" label. What I've noticed over the years is that if < I > do the oil change, and put in Vauxhall labelled oil, the engine oil warning light stays "off". OTOH, when I've had my car serviced at a garage, I find the oil warning lamp comes "on", and sometimes well before I'm due for the next service. Topping up with "Vauxhall" oil puts the oil warning lamp out.
How does my engine know what oil is in use? Am I being short changed by the garage?
Thanks for any insights!