Ragged Edge 4×4, the world’s first 4×4 indoor track has opened in Melbourne, Australia. Think of it as go-karts on steroids.

Ragged Edge 4×4 was established by Chris Nolan as a production company for 4×4 activities in Australia and is now available for fun times for the general public.

The trucks are made at the venue. They have 44″ tyres and a 350 Chevy engine.

Once you are helmeted up and strapped in, an instructor will take you through the course and then, if you choose, hand the wheel over to you.

Nolan says he expects the venue to be equally a big hit for petrol-heads and corporate functions alike. A time-share plan for people wanting to buy the vehicles will also soon be available.

Regulars can take out a membership at the course for reduced costs for each visit.

Ragged 4×4 is open Wednesday through to Sunday.

Visit the website at www.re4x4.com.au

If you're like the majority of 4x4 Drivers, you won't be able to change the diff oil until you get home, because you won't have spare oil and a sump pump to change it. If you suspect contaminated oil (a deep water crossing without extended diff breathers or perhaps you have leaking diff seals) then you can try and remove the water by draining the diff until only oil comes out the drain hole. Do not drain too much and leave your diff short of lubrication. Collect this oil and water emulsion as you should never dispose of oil into the environment. Save it till you get back home and dispose of it properly. Its not only diffs that can have water contamination, but also your gearbox, transfer case and engine oil. However, it is usually only when a vehicle is stationary in deep water that these components are contaminated.