STP Diesel Complete Fuel System Cleaner 400 ml

Cleaned fuel system

I normally use another product which is readily available at supermarket garages, but I thought I'd give this a go. Much more expensive but apparently it is meant to last much longer rather than using half a bottle of that other stuff each time I fill up. Overall I do think it did a good job but I don't think I would buy it again in a hurry.

My BMW (12 years old with 113k milage) started to shake when I’d start it up. It used to feel like it was going to take off but the shaking would only last for about 15 seconds or so. I thought it’d be an expensive fix but came across this and thought I’d give it a try. Filled up a full tank of Diesel and then poured the entire contents of this bottle in immediately after. I didn’t notice much difference whilst driving like some people say (I didn’t have any performance issues anyway). However, the shaking at start-up has finally stopped! It’s recommended to use this product every 4000 miles so I’ll definitely be doing that as it has certainly helped with the shaking issue. I’d recommend this.

bought this off UK SELECT DEALS, really good product does what it says for a good price, car feels smoother, fuel is lasting longer happy as larry

STP is a quality Company and have used the DPF cleaner as well to help with the emissions from my Mark VI TDi Golf. Used this product after having a EGR Fault and decided to put into my last full tank of fuel and got a good 55.8MPG over mainly urban and a bit of Motorway driving covering 580miles before filling up.

Good. It works for its purpose.

As bought for a different fuel engine system

Didn't see much of a difference. Probably a better idea to stick to the premium fuels instead.