Speed Tec Gasoline | 250 ml | Petroladititive | SKU: 3720

I've been using this for a while in my SEAT Leon Cupra 300. After 6 cans (6 full tanks) I switched back to just regular fuel for 4 more full tanks. There is definitely a clear difference in engine noise, and performance after driving several hundred miles with/without SpeedTec. The acceleration is definitely improved in the mid-range. It pulls harder, for sure. And the engine appears to run a little bit smoother. I use one can of this mixed with a full tank (50 litres) of Shell V-Power fuel.

What difference in my daughters 30 thousand mile Clio. Running much quieter and smoother acceleration

I used this in my BMW Z4 E89. The car feels more responsive and the engine smoother. I don't know if it is any faster , but I liken it to when the car has just had a full service. For what this costs, I think it is good to use every few months.

Didn’t really notice any difference and is expensive. Will stick to redex when it’s on offer most times at the supermarkets. Think the brand name attracted me to it as LIQUI MOLY is a good brand.

My car, a Prodrive tweaked Subaru WRX, is tuned for 97+ Ron super unleaded fuel and if I use standard unleaded the ECU detects knocking and retards ignition, which makes it hesitant and sluggish. Sometimes I have to reset the ECU once normal fuel is back in after using standard fuel. It’s even done this sometimes on certain brands of ‘super’ unleaded, so I generally stick to Shell or one of the supermarket branded 99 Ron ones that I can’t remember the name of as I’ve found those reliable. During the recent UK ‘fuel shortage’ I could only find standard unleaded, so I bought a bottle of this to see if it would help, and surprisingly it did. It’s not as smooth running as when using Super, but it’s close in performance and seems to have prevented retardation. I really didn’t expect it to work being skeptical of such ‘snake oil’ additives, so I’m sure it’s not a placebo effect. I’ll get another bottle of this or another brand and keep one in the car just in case I can’t get super again. Wouldn’t bother adding it to super though, it’s neither cost effective on any fuel nor necessary on the right fuel, at least I don’t think so. As a ‘snake oil’ convert I’m now thinking I should get a fuel stabilizer for my camper van as it sits for a few weeks unused and a tank of fuel can take all winter to use up.

Definitely worth it for the price.

Great staff

Absolutely loving it! Amazing stuff, all what I needed. Works perfect, feels a quite big different as dor only addative liquid