Oil leak

[mendip magic]

4.2 standard 97 car

Has an oil leak. seem to be collecting in LH side of tray under radiator and dripping along chin spoiler under car - any ideas?

Also, there seems to be an oily residue on rear coil bank - is this common? is it where oil spits out of dipstick tube? if so, is there a cure

[Extra 300 Driver]

Do you have an oil cooler at the front? This would be a good start as they are prone to stones entering at 100mph!

Check your pipes for leaks also your filter.

[RUSSELLM]

Regarding the front one, I've had the front pulley oil seal replaced,

Could be that one