Join Date: May 2007
Location: United Kingdom
County: Vale of Glamorgan
There is another thread on injection cleaners on here somewhere from a few years ago.
An AO member who is an industrial chemist annalised some and found they were paraffin with a dash of nail varnish remover ( which I believe is cellulose thinners). I have been putting 250ml of paraffin in a full tank every now and then ever since. I used it on a 115000 mile 1.8 16v 155 I bought on E-bay with borderline emissions and it worked a treat. The car is still going strong at 150000 miles. As Alfa Seltzer says its much cheaper to buy paraffin from B&Q.
Owners of some older classics, 1950,s and earlier, have found that a couple of litres of paraffin in the tank make the car run a lot better. I was with a friend when he put a few ( 5 or 6, I think) litres in his 1949 Riley RMF and the difference was remarkable. I would not have believed it if I had not witnessed this myself. That was a year ago and the car is still running fine. I am not sure what this says about modern petrol which is only about 50% petrol and 50% man made chemicals to pad it out, which of course means that petrol is twice the price you think it is !