Smooth Running Rover. A highly scientific method of determining engine smoothness.

[@joshsmith3020]

I have seen the 92 c1500 that my dad gifted me run with a quarter standing on the breather. Most wild thing I’ve ever seen and she’s still smooth to this day at 209,000

[@You-can-fix-it-yourself]

I will try and stand a quarter up on it. I've always used a cup of water.

[@Sammyboy1335]

Ford 4.0

[@You-can-fix-it-yourself]

Land Rover 4.0L. Land Rover bought the tooling and rights to the Buick 215. They started releasing it as the 3.5L, then the 3.9L, and then the 4.0L and then the 4.6L. This is a 1996 4.0L.