just thought id post up on here
i had added 1 shot of millers to 170ml of 2-t oil (castrol actevo jaso fc)and mixed in a glass container to see if it settled out? after 2 days no seperation so threw it in with 45L of shell v-power last night, went for a drive 50 miles 50mph-70mph varying coasting and hard on boost.wouldn't say its got any more go or sharper response but it does feel smoother as in dulled slightly?
anyway i had taken dB readings before adding it to compare and also videos now on you tube.
car is fiat stilo jtd 16v 150bhp but boxed to 180bhp 20k miles ,
standard from cold start
1/4 warm by now
with 2-t mix but up to normal temp
looking at the evidence so far from my readings all i can say is my car has not altered in noise level inside the car +/- 1dB at idle but the engine does appear to be smoother looking at the glass test(but engine was warmer)
will get more readings from cold start another day and post up.
if it does no harm and helps lube the diesel i will keep using it especially as i run higher fuel pressure due to box.