MRC Tuning

[Herbie75]

This may seem like a strange question but has anyone been in touch with MRC recently, I tried calling a few times last thursday and phone rang and rang with no answer, the same has happened today.....???

What i'm kean to find out is what oil the put into my B5 RS4 when they serviced it as it is close to needing a top up....perhaps someone else might know the answer to this.....?

[DavidT]

I reckon it will be Castrol Formula RS 10W60 unless:

a) my memory has let me down or
b) they have changed oil supplier since May

[S4TAN]

I reckon it will be Castrol Formula RS 10W60 unless:

That's the oil they use in mine - I don't have an RS4 but I do have a stage 3 S4 with RS4 turbos, big injectors, RS4 clutch, RS4 intercoolers, full de-catted Milltek, MRC custom re-map etc etc - so comparable to a stage 1 B5 RS4 in power terms (around the +420bhp mark - estimated...)

[Herbie75]

Thanks guys, i'll see if I can get hold of some. Still no idea why no one picks up the phone, i've been trying all afternoon.....

[Herbie75]

Ummm....so is this now called Castrol Edge Sport 10W60?? I can't even find Formula RS on the castrol website.

[DavidT]

Yep, sorry it is, I did the same a few weeks ago

[Herbie75]

Great, thanks!!