cleaning a eurovent awning help please

madhound

We have a eurovent awning which is used on a sesonal caravan because of this and its a light colour it has got really dirty

We tried cleaning it last year with a caravan awning cleaner and also with a home steam cleaner neither of these things touched the dirt so really need advice how to get it clean as the awning is perfect just the grime on it which is making it look shabby

Hope somebody can help and tell me what to lean it with please

steve