RESPONSIVE FUEL ADDITIVE LUBRICANT & CONDITIONER TREATMENT

I must have been using this additive for 15 odd years,in a 2008 ranger and also now in a 2015 4hk1 Isuzu truck,both donks have been flawless,ranger near 300,000kms now with smaller things other than engine wearing out,ill continue to use responsive while i own diesels

I have been using this for many years. That’s why I keep buying it

Absolutely brilliant additive!

Prado was idling rough at 8 & 9. So put 19 to 20ml of your fuel additive into the Prado's 150 litre tanks and at approximately the 3km mark the engine started sounding a lot more smoother, and at the end of the 8k drive I let it idle for a few minutes and the engine was purring, sounding so much more smoother, and it's idling was smack on 7! So am very pleased! Absolutely brilliant additive! Huge thank you to Responsive Engineering!