I came upon the phrase ‘the mechanic’s gallon’ a while ago. Teams in the 60’s were trying to save weight and make the car as light as possible, inc. putting as much fuel in the car at the start of the race so that it lasted JUST to the end. This generally worked but a few times ran out of fuel with a few laps to go. So unbeknownst to Colin Chapman, the mechanics when fuelling the car would add an extra gallon, just to make sure it was enough, hence the ‘mechanic’s gallon’!
https://mechanicsgallon.blogspot.com/
Robin Day, part 2 of 3
Part 2 continues with the McLaren move to Woking and the extra workload courtesy of Mr. de Cesaris. Then it was testing with Niki Lauda, the drivers strike at Kyalami, switching to Brabham then back to McLaren then another return to Brabham and running Stirling Moss in the car at Brands Hatch.
All three parts of the interview are also on YouTube at https://tinyurl.com/mryh6f8x
Audio podcast is here.