[ultra]

Here's something weird - my dash rattle wasn't there this morning!

At least not for 15 minutes.

I let the car warm up for 5 minutes (smoke break) then drove to work in silence. It only started again after about 15 minutes on the road, so now I'm confused.

What kind of dash rattle would only show up under acceleration once the car's hot (or warmed up)?

I was thinking that it's triggered by some kind of harmonic resonance, but bringing engine temp into the equation means that I am baffled right now. :P

I'm going to try and dump some toluene into the tank to see if it might be knock/ping related, then will remove the noise generator and check the heatshields on the exhaust.

That way I suppose I'll know that it's either something weird in the dash, or the injectors/valves, or maybe the transmission/clutch.

Engine oil might be a factor too - I think the OEM is 0w20 but it's around 40-50 Celsius outside here in Dubai so I'm thinking that the oil might just be too thin?