My pajero has a oil leak under the engine
Hi, this is not enough information to tell you anything. but pls remove the undervocers, then clean engine carefully, then drive it for a short while, then inspect again. Main suspects are three: Oil filter loose, oil pressure switch is leaking at the threads, or (depends on mileage) could be rear crankshaft bearing worn out.
If oil is coming from above, then there are too many possible causes, including rocker cover gasket damaged, turbo charger leaking oil (is it a diesel?) etc. etc. Just get the engine clean, let it run, then you might spot the leakage.
Regards, Winfried (Austria)