Terraclean - works for me

[Nigel_O]

I've waited for a while before posting this, as I wanted to be sure there was no placebo effect. I'm normally very wary about the types of claims made by Terraclean, but I read enough positive feedback to warrant risking the cost to have the treatment done

I bought my high-mile Alfa GT diesel eleven months ago to use for my 80-mile round trip daily commute.

When I first got it, I was getting an average of about 44mpg. In the new year, I had an economy-based remap, along with an EGR delete, which improved the mpg to about 46. In February, I had the engine Terracleaned and the results have been startling

As well as noticeably smoother (and less smoky) running, the mpg has improved to nearer 50.

However, I know that some will demand irrefutable evidence, so here it is.

My fuelly.com history up to the point just before the treatment



As you can see, apart from two blips (37mpg and 47mpg) the norm was between 42 and 46mpg

Here's the current trace, with the clear jump in mpg immediately after the treatment



Since late February, the WORST tank average I've had is the same as the best I'd ever had previously. The best tank average is just shy of 51mpg

Another way of looking at it - in the 25 tanks I used up to the treatment, only three went over 600 miles from the tank and all were following long motorway trips. In the seven tanks I've used since the treatment, only one has been below 600 miles and none have been long journeys - all have been my normal daily commute.

I know that maximising mpg is hardly the "PH way", but the Alfa is just my weekday hack - I have a 480bhp Fiat Coupe for when "speed matters" and the more money I save on the daily commute, the more I have to spend on running the weekend toy

So - anyone else had any experience of terraclean?

PS - my surname is not China - I have no vested interest in Terraclean - just sharing my experience

[TimLambert7]

480hp Fiat Coupe?!

[Blib]

TimLambert7 said:

480hp Fiat Coupe?!

http://www.pistonheads.com/members/showcar.asp?carId=169289

[Nigel_O]

Oops - need to edit the details - no longer a daily driver, but still used very regularly (and rather more enjoyable to drive after a long week's commuting in a 150bhp diesel)

[JuniorD]

Without doing anything to my car my fuel consumption has increased markedly around the same time period. It does that every year as winter turns to spring and the temps rise.

[TimLambert7]

Blib said:

TimLambert7 said:

480hp Fiat Coupe?!

http://www.pistonheads.com/members/showcar.asp?carId=169289

Holy Crepe

Torque Steer?

[Nigel_O]

TimLambert7 said:

Torque Steer?

None to speak of - spent a long time sorting the geometry and getting the right width wheels. Quaife diff helps hugely, although it can tug around a bit when it starts to break traction, which is quite often....

[Nigel_O]

JuniorD said:

Without doing anything to my car my fuel consumption has increased markedly around the same time period. It does that every year as winter turns to spring and the temps rise.

I've noticed that too - why is it this way round for a turbo diesel, when the opposite is true for a turbo petrol?

In any case, my mpg made the big jump in February, when it was still very cold, so not all of the improvements can be attributed to the warmer weather

[jjones]

Nigel_O said:

why is it this way round for a turbo diesel, when the opposite is true for a turbo petrol?

i think the additives they use in the diesel in winter to prevent waxing has an adverse affect on the energy value of the fuel and therefore lower mpg.

[lamboman100]

On face value, at first glance, assuming accurate measurement, in the early phase right after treatment, it looks like a potential 2 - 10% mpg improvement for the OP.

[PaulD86]

JuniorD said:

Without doing anything to my car my fuel consumption has increased markedly around the same time period. It does that every year as winter turns to spring and the temps rise.

I'm not arguing it has or hasn't worked for the OP, but given his graph starts in July I'd suspect we can rule out the increase in temps in Feb as I think it's fair to say that this past Feb wasn't warmer than last July. Of course there are many other variables, but I just don't think spring temps is the answer to this change.