Anyone know where to buy it.? Mice in the car engine compartment.

Can't speak for peppermint oil, but we live in the countryside, have mice/rats on a regular basis.  We place a few small mothballs inside the top of a spraypaint can (or similar) and put it in the engine compartment.  That's taken care of the problem, even after being in the US last year for 13 months due to covid.

46 minutes ago, pontious said:

Anyone know where to buy it.? Mice in the car engine compartment.

I don't know if it works or not.  Some say it does, others say no.  You can however buy it as "essential oil" on Lazada or Shopee.  

You can buy Rat Off spray at most major supermarkets and online from Lazada. It has a noticeable peppermint smell.

It upsets mice but I don't know about rats

On 3/6/2022 at 6:09 PM, Dmaxdan said:

You can buy Rat Off spray at most major supermarkets and online from Lazada. It has a noticeable peppermint smell.

I had mice/rats chew my car wires twice, luckily the car is under warranty/insured, but to avoid any future problems I just ordered a can of this off Lazada, thanks for the info.

22 hours ago, bbko said:

I had mice/rats chew my car wires twice, luckily the car is under warranty/insured, but to avoid any future problems I just ordered a can of this off Lazada, thanks for the info.

Squirrels and chipmunks too at my place!