Details matter.

ooking curiously non-standard, this orange light in Brian Henton’s, page 76) is an oil-pressure warning. As former Hart race engineer John Doe recalls today, “It was instigated by my boss Brian Hart after several oil system failures mainly due to surge in the fabricated tanks.” When oil pressure dropped, the light came on and was this size so it could be clearly seen in bright sunshine. It’s thought to be a Lotus Elan side indicator.