What shall I use to clean car oil off a brick drive – without causing too much harm to my garden?

I was gonna use a flame thrower, but I haven’t got one yet . . . .

😉

Caustic soda

could try muc-off chain cleaner – seems to break up most oil and is biodegradable in itself. the residue will just go into the sand between the bricks.

it there’s loads of oil then cat litter on first to pick up the worst and brush that off before degreasing.

good oil fashion way….scrubbing brush springs to mind with (curlers in netted hair get down on yer knees and some good brick cleaner and scrub ? maybe they mite sell some on http://www.bricks r us .com lol(sorry being very cheeky minded today 😉
…have you got a power washer …

Hire a diesel pressure washer and blast it away on a high heat.

Chain degreaser-Pour on and scrub,leave for a while and then pressure wash.

i’d look pretty rough in curlers . . . .