4.74.7 out of 5 stars
49 product ratings
  • 5stars

    41ratings
  • 4stars

    5ratings
  • 3stars

    2ratings
  • 2stars

    0rating
  • 1star

    1rating

45 reviews

by Most favourable review

Great product.

I've been using this in my classic cars for many years now to avoid valve seat recession & to provide an octane rating increase. The plugs come out a lovely colour when checked & my mechanic says in conjunction with using the 'super' fuel it will save a lot of damage.Read full review

by Most critical review

Watch the user date on the bottle.

This product has a two year user life from the date on the bottle. This information is in very small print. The bottle I received had two weeks user life left, I looked at bottles on a retailers shelf that were already out of date. Millers made it clear to me that the product degrades in time and should not be used if out of date.Read full review

Verified purchase:  YesCondition: newSold by: spooxracingdeve...

by

Works well for my bikes

I have used this product in my 1970 Norton Commando's (750cc 9:1 compression) for a number of years, covering 4-5000 miles on each bike with no obvious issues with valve recession, or carb corrosion from the ethanol, I have also confirmed I can run if required on regular unleaded petrol without issues with pre-ignition/pinking, I haven't tried without using the VSPe, but would assume some octane improvement is provided. Read full review

Verified purchase:  YesCondition: newSold by: damiandamian71

by

Great value.

Economical and easy to use. Comes with a custom zipped soft case.
Essential to protect the fuel system from the corrosive acids in bio-ethanol. Also boosts octane and prevents carbonisation of the valve seats.Read full review

Verified purchase:  YesCondition: newSold by: sarahmhodges

by

I have been using this product for a while now. Obviously does what it says on the bottle as I have experienced No mechanical problems to date. Rec.

Verified purchase:  YesCondition: newSold by: bullmotifspares

by

We use the product in our MGC and find it a great help in coping with modern fuel. It also seems to boost BHP! Not cheap, but well worth the price.

Verified purchase:  YesCondition: newSold by: opieoils

by

Quality product and I have used it for 15 years with no issues

Easy to use and gives peace of mind for an older vehicle in relation to increased ethanol levels in modern petrol - why take a chance?

Verified purchase:  YesCondition: newSold by: spooxracingdeve...

by

Does what it says on the bottle!

Have used this product before on my classic car good results

Verified purchase:  YesCondition: newSold by: spooxracingdeve...

by

Improves engine running

I have used this product before in my e type and it works very well

Verified purchase:  YesCondition: newSold by: bullmotifspares

by

Ethanol free.

I remove the Ethanol from the petrol for my 1962 classic car. That reduces the Octane rating slightly. This is added to increase the Octane rating and maintain he fuel system at the same time.
Good value too, treats 500 litre of fuel.Read full review

Verified purchase:  YesCondition: newSold by: spooxracingdeve...

Why is this review inappropriate?

Displaying 1 - 10 of 45 reviews