premmington
Member
- Messages
- 6,151
- Location
- Norfolk
That was the early EcoBlue engines.
If it had a black/grey dipstick fitted, you replaced it with a shorter yellow one which allowed for an extra litre or two of oil.
One of Ford's many attempts to fix the early oil life issues.
I think I had a couple vans that I updated 4 or 5 times before Ford finally fixed the issue.
I have seen the filling oil differences and the "yellow dipstick" reference on AutoData...
But never seen a transit with a yellow dipstick myself - I know they exist...