Subject: Re: Oil pressure fluctuating...
Alan Brown has a recommendation for 2-Litres with low or fluctuating Oil Pressure.
1. Cut a 2 inch square of adhesive Duct Tape.
2. Clean glass on Oil Pressure Gauge.
3. Stick Duct Tape over Oil Pressure Gauge.
The recommendation has served Alan right for over 40 years, so I suppose it's worth considering !