“I have been having problems with my Audi S3 having a slight misfire on cylinder 4. The next step was new injectors. I read a few reviews on Red Line S1-1 Fuel System Cleaner & purchased a bottle from Opie Oils. Delivery was very quick & as I was doing a 270 mile journey , put a full bottle in an empty tank & filled up. Got to say the Car is running so much better not sure if it's cleared the misfire but feels like it. Worth a go for £20. Possibly saved me £2500 .”
“First time using this product but misfire has gone, strong engine performance on mini jcw now but of course time will tell, not yet used full bottle!”
“Can’t really say if it’s worked as its early days, packaging was good, delivery was on time.
Bottle spout is long enough to able you to add the liquid into the petrol tank without any spillages.”
“Read the reviews and even though it was slightly pricier than others, gave it a go. Unbelievably, it worked! It's like driving a brand new car again. Quicker acceleration, quieter engine, and no juddering.”