Product Description Reviews Originally designed by Stroud Safety, these Non-SFI Engine diapers are designed to help keep oil off the track and away from the driver in the event of a catastrophic failure! Available for all engine and oil pan combinations, for all type cars. These are not designed to be used with motor mounts. Dimensions are 22" L x 12" W x 3" D 1 Review 5 Engine diaper Posted by Rodney Ferguson on 5th Nov 2024 Fits great and easy to install. It gives me a better sense of safety. We have a belly pan on the car and after a major engine failure the pan was not able to contain all of the oil from the engine. This diaper will better contain the oil.