As the title says!!

I bought an 05 Mondeo TDCI the other month. In this time I have.....

De-cat
K&N panel filter
EGR Blanked
Evo-Chips Remap

Today I thought I would give her an oil change and filter. So using Ford 5-30 oil and OE oil filter I did the change. The oil that came out was ok, I have seen a lot worse! Filled her up and then went out for a drive......This may sound crazy but she pulls better, cant understand why this is though, I mean I can understand the above mods especially the remap but just an oil change??!!