No, but pointless

Euro 5 means the sulphur ppm, after burning less soot or smoke

Only new cars with vgt, egr, dpf required euro 5

If put euro 2, the soot will be problematic in modern diesel

Make the vgt stuck, egr blocks  dpf block, engine oil more black

Putting high rpm isn't the way to purge the soot out, because no load

Best way is go genting full throttle

i pump my hilux (5 years car) with low grade diesel 3 years ago..when morning, it's hard to start the engine (took 1-2 minit)...i thought i had to waste a lot of money ald..
in these few months i start to pump it with Petronas euro5, and it's more easier to start the engine now at the morning..