If your car is not that old why would you want to use it ? If anything went wrong would Seat use that as an excuse not to honour the warranty. My advice don't bother.
Ive used Millers in my 184 quite a bit, I find it gives quieter combustion noise especially at tip in and the step change in noise at 3500rpm is much reduced. Torque is slightly stronger and top end has more punch.
Overall I am pleased with the results from it. I am also trying out Archoil AR6800 but only just coming to the end of the first tank, so its early days but seems to give the same results at the Millers, maybe even better from a noise point of view.
I think the 184 engine needs higher cetane as it responds well to a slight increase.
Yeah be good to hear how you get on. Does your 184 have a distinct increase in noise at 3500rpm full throttle ?? That was my main reason for trying it.Thanks for your reply, based on that I'll give it a go!
I'll update after a couple of tanks.
2015 Leon ST FR 184 DSG
Yeah be good to hear how you get on. Does your 184 have a distinct increase in noise at 3500rpm full throttle ?? That was my main reason for trying it.
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Be aware that these cetane booster additives have a very distinct lingering odour so it will be very hard to deny/disguise the fact that you have been using it should a warranty claim situation arise.
In my experience the smell persists for more than one untreated follow on tankful.
If you use the cetane booster and subsequently have an issue with the engine that you would like to have investigated and fixed under warranty then you would probably want the issue fixing ASAP rather than waiting until you have burnt through one or more tanks of untreated diesel to destroy the evidence.![]()
Update time:
A noticeable improvement in performance at the top end and quieter running at the bottom end. Very happy with the results so far.
I also emailed Millers who replied promptly and we're happy to put in writing that there product would not invalidate any warranty on the car. Not sure how this would help in the event of a problem, but it does give me some confidence that the situation shouldn't arise!
2015 Leon ST FR 184 DSG
That's good feedback, matches what I have found in my car, and good news about warranty.
What dose of Millers did you use ? I've only run with double dose ( 100ml per tank ) so far
I also used a product called diesel rhino which has same claims as millers and I experienced same positive effects.