Hello. My lovely other half has got a Vauxhall Agila. Guy at the garage where the car has been serviced since new says he cant tell what the problem is as there is too much oil in the catalytic converter. Now I know nothing about cars except that the old ones are so much better to look at but can oil get into the catalytic converter? The Agila is a 200 model with just 15.000 miles on the clock in case that makes a difference. Thanks for any input.