Also to bare in mind, a fuel additive could potentially void an engine warranty claim. Can that diesel additive be used on vehicles fitted with a DPF ?
Liking your man maths.

Oh dear, did I total that stuff up wrong ? The reason I ended up a web designer lol - I could never get my head around numbers, but drawing stuff I love I now wonder what my engine has - should I stop treating it and go the extra hog with the better fuel. The only thing is that here where I live is all them pop up stations where you pay at pump for the bad stuff, so finding the better stuff requires a bigger run to get it.

This was in my mind and I ended up going for the millers option, that coupled with my older engine (117k) I thought it was the better move. But very willing to be proved wrong and take a better path.



I read the product description on the additive:

Description
A one shot diesel additive designed to clean diesel particulate filters (DPF) reducing the regeneration temperature required to allow the trapped soot particles to be burnt off. Ensures a cleaner more efficient DPF.

Application
By addition to the fuel tank prior to refuelling. One 250ml bottle treats 60 litres of fuel as a preventative measure, approximately every 2,000 miles (3,000 kms) Can be used more frequently if DPF blocking is a regular problem.

User Benefits
Short trips and stop start driving will mean lower exhaust gas temperatures and the regeneration of the DPF will not take place leading to blocking by trapped particulate matter. The engine will become inefficient and in some cases the warning light will illuminate requiring immediate action. This product provides the following:
One shot treatment for fast results without the expense of dismantling or renewal.
Lowers the temperature of regeneration assisting the removal of trapped soot particles. Highly suitable where short trip stop start driving is the norm.
Cleans the DPF, providing optimum fuel economy, reducing emissions and restoring engine power. 

2x500ml of Millers Diesel Ecomax ordered off Amazon