I have been reading alot about these engine/ transmission/ fuel line enhancement products called x1r. Im interested in giving them a try on my 98 xk8. Has anyone on here had any experience with these products? If so I would really like to hear about your experiences before I try it for myself.

 

If your 1998 XK8 is still on the original engine and transmission after 16 years, it's getting along very nicely without any 'enhancement products'.

Graham

 

I would be skeptical of any certified space technology and web sites that use made up words like "detergency".

My vote is snake oil.

 

I was skeptical myself but heard alot of people praising it. I was looking into it because the transmission just broke at 150,000 miles. Everything in the car is original.