I have a 54 plate Mk5 Astra with the 1.4 (petrol) 16v engine. I have been monitoring the oil consumption and I was looking for some thoughts. A few weeks ago I put in 1.45 litres of Oil, and noted the mileage (55515), today I checked the oil again and it was low. It took 1 litre of oil and it has done 57129 miles. I have been using Vauxhall 10W40 (semi synthetic) oil.
I am starting to get a bit concerned as in 1614 miles it has used a litre of oil . The car is due an MOT & service soon, so was wondering if you think I should mention this to the garage.