Peugeot 406 (90) TDI- MPG low - largegar
I have just bought a 406 (90) hdi, 35k, 3 years old. It is a nice drive, no obvious issues and suprisingly spritely. However, on long motorway runs I am only getting 40 mpg, I was expecting 55-60, and the tech data indicates 62. It is overdue a service.

Any ideas - clogged injectors / air filter - could these impact the mpg as drastically as this, or do I have a real problem?

Many thanks

Gareth
Peugeot 406 (90) TDI- MPG low - Andrew-T
There's another current thread on exactly this topic ...
Peugeot 406 (90) TDI- MPG low - largegar
got it - thanks
Peugeot 406 (90) TDI- MPG low - LukeMH
That would be my thread, at least I know I am not alone!