Learnt this one as a kid. The tune will become obvious.

Allan

Oh my gosh, oh my lord,
here comes Henry in his Ford.
Along the road to Gundagai.

With the radiator hissing,
the spark plugs all missing
and the gear box running dry.

There's water in the petrol
and sand in the gears.
It hasn't seen a garage for over forty years.

Oh my gosh, oh my lord,
here comes Henry in his Ford.
Along the road to Gundagai.