Talk Morgan Forums Morgan Sports Cars Morgan Plus Four, Supersport & Plus Six (CX & CXV Generation Vehicles) Oil level reading

My 2025 Plus Four dashboard gauge oil level reading always reads 4/4 even after recent dealer oil change. I've heard that it should read 5/4 when full. Is this so? And how much oil should I add to read 5/4 without overfilling it? Thanks.

Page 33 of the Plus Four 2025 handbook (found here: https://morgan-motor.com/wp-content/uploads/Plus-Four-Handbook-V1.1-MY25-Web.pdf) which is titled "DRIVER INFORMATION PANEL Oil Level Readings" shows that an oil reading of 4/4 (green coloured oil can and engine bay symbols) indicates "4/4: Engine oil is full." The handbook also indicates the volume of oil that would need to be added if the reading shows the oil level is low, 3/4, 2/4, 1/4 etc. with amber or red coloured engine bay symbol. Addition of more oil when the test indicates a 4/4 status would eventually lead to "!" red symbol and "OVERFILL: Engine oil has been overfilled. Do not drive." Not to a 5/4 status. Whoever told you it should be 5/4 needs to be corrected. Your readings indicate that the dealer has refilled with the correct volume during the oil-change.

I think it is 250 ml per unit eg 3 to 4 . I was told 5/4 wasn't a problem.

Every time we go on a long trip, my wife asks if I have checked the cars oil. I reply I’m the only dipstick it has but she always asks . Thinks she just likes me calling myself a dipstick !? Could be worse. I know I’m the oily rag to her organising brain; she knows everything which is why I sold our set of The Encyclopaedia Brittanica .
Have a good weekend . MM

Our 2020 PlusSix has always shown 5/4 when full, questioned 2 main dealers about it and they both said its fine.

Maybe the earlier CX cars show 5/4 full and Morgan fixed this later in MY builds to show 4/4 in later cars.. its the sort of thing they would do??.its just a guess..

No apparently it is a BMW thing I'm told