Hi I'm new so please be gentle.
I have a Ford 2.0l PSA DW engine Ford recommend this: Mobil Super 3000 X1 Formula FE 5W-30
But with the same engine in another car V70 2.0D (D4204T - 100kW) the recommend this:
Mobil Super 3000 X1 Formula FE 5W-30 or this: MOBIL 1 ESP 0W-30
But the same engine in this 407 2.0 HDi 16V FAP/DPF Coupe (DW10BTED4 - 103kW) they recommend this: MOBIL 1 ESP FORMULA 5W-30.
I understand the basics of oil and I get Ford want the use the FE to save fuel but what I don't understand is why Peugeot and Citroen both use the Mobil 1 ESP 5W 30.
I want to use the Mobil 1 ESP 5W 30 I don't care about the minuscule amount fuel I will lose I want the engine to run longer as it will be a while until I can afford to buy another car so I want this to live a long and reliable life.
I know the Peugeots and Citroens use this system:
* a post-injection of fuel in the expansion phase, which generates post-combustion in the cylinder and raises the temperature of the gases by 200 °C to 250 °C, to around 350°C to 400 °C.
* additional post-combustion generated by an oxidation catalyser placed upstream of the filter, which treats the unburned hydrocarbons from the post-injection phase. The temperature may increase by a further 100 °C, up to 450°C or 500 °C.
* the fuel additive Eolys fuel additive. This additive lowers the natural particle combustion temperature to 450 °C.
And my Ford doesn't use the Eloys fuel additive but it says: The DPF regeneration can be done both actively and passively.
Mobil 1 ESP 5W-30 is for the cars have DPF and that's why it is recommended for your Citroen and Peugeot. However, this oil does not certify Ford 913-C.
For your Ford, either Mobil 1 0W-30 Fuel economy or Mobil Super 3000 X1 Formula FE 5W-30 will be a good choice as they certify Ford 913-C.