Started putting 200ml every tank for the past 3 months since reading about it on here, certainly noticed a different, quieter engine, possibly a little bit more mpg, well worth it
I am putting a ratio of 200:1 in both my TD4 and my TD5 and both of them are seeing a vast improvement in smoothness while ruinning and engines are a lot quieter.
tried 500ml carlube from tesco in full tank took 3 days to notice a differance running a lot quieter will c how it goes dont do a lot of miles so hard to tell if improved mpg