Duchatelet
Member
- Joined
- Jun 24, 2007
- Messages
- 35
- Car
- 300E Carat Duchatelet
The other day I pulled into the local petrol station to fill up and found there to be a long queue for the pumps. The queue was caused by a lack of unleaded pumps being available (the others having out of order signs on them) and obviously no one wanted to pay the extra 4p or so for the super unleaded. Not being particularly patient I thought sod the queue and filled up with super unleaded. This got me thinking, is it any better? so after a quick google I found that the general opinion was that it depends on the cars ECU and if the car has the ability to detect the higher octane rating and adjust its ECU accordingly, I know that mine has one (1992 W124 300E) and wondered if it would indeed make a difference. I reset the odometer every time I fill up so this will give me something of an idea but thought I'd ask here and see what your thoughts are.