BMW 3 Series - Tech Talk For All Gen Of 3 Series
Just ordered a 500ml container of Millers Ecomax, this is the updated version of Millers diesel power 4.
I used MDP4 in previous diesels and got easily 5mpg more while using it.
Now noticed my mpg overall average is only 30mpg, decided to give this a go and see what happens.
Anyone got any...