Originally Posted By: kschachn
I still wish someone could tell me what it is in the upper cylinder that needs lubing
And the injectors and fuel pump? Somehow I haven't seen either of those dying on any of my high-mileage cars and I never add anything to the gasoline.
The line about the skeptics not having any say because they don't use it - well where do you get your complimentary data points from then? People who say that generally just don't want to have to defend against the majority that do not use something and don't have an issue (and without citing any technical merit). It's a way of deflecting the topic away from showing a need and an effectiveness, and putting the burden of proof on the other side.
Originally Posted By: 19jacobob93
No there isn't much in the upper cylinder that needs lubing, apart from maybe the compression rings. But don't forget that fuel travels through moving parts that use fuel as a lubricant such as the fuel pump(s) and injectors.
I used to think the same until I actually started using UCLs in my car, and I don't think any skeptics on here have room to talk if they have no experience with them but just their opinion on what they think they know.
My old man always used Lucas fuel treatment and I thought I'd give my car a dose. I always used the exact same fuel from the same station so any noticable changes would be 100% valid from where I stand.
Anyways, after a few days I noticed the idle was much smoother, acceleration and higher RPMs were massively quieter and I no longer had the vibration I used to get from the engine past 4,000rpm.
After I filled the next tank up and added some more UCL I reset the trip as always and I ended up getting over 830KM out of a tank, where as before I would rarely get above 750.
I have recently changed to TCW3 after I found it gave similar results for half the price, but I now know that UCLs definitely do something positive to an engine,
and for those who are saying 'what needs lubing?' I don't really know! But it must lube something!
IIRC, MolaKule said that motor oil does just fine as a UCL.
As for skeptics not having say, I agree with you. The product makes public claims, the public has the right to question it.
So what is the science that proves it works?