Knocking Noise

[nismoman18]

MY Rb25DE makes an annoying knocking noise at 2000-2500 Rpm when the engine is cold. its prolly sumthing to do with valves, just wondering if neone has the same problem and what stops it. like will an additive stop it. its not at 100,000 kms yet, but it couldve been wound back, who knows. ne help greatly appreciated

Clint-O

[predator]

Depends - what petrol you running? Dodgy cheap petrol will make it do that.. Mine does it occasionally on the "less premimum" 95RON stuff.

[nismoman18]

i only use optimax and BP ultimate, dont want that ethanol crap in my car, and want it at its optimum performance. i might try like an engine additive