First I applied an all over wash with AK Enamel Wash for DAK Vehicles thinned 50/50 with turps. I let this dry for 24 hours then added other effects such as Streaking Grime, Rust Streaks, Dark Brown Wash, Light Rust Wash and Rain Marks. This was sealed in with a coat of matt varnish ready for the final weathering with pigments. The main pigments used were AK Dark Earth and Airfield Dust mixed with some dirt from the garden to beef it up a little. AK Pigment Fixer was used to fix the pigments in place.
The wheel pads were painted separately with dark rust and left to dry before being attached to the wheels. I initially weathered them by sponging on some buff colour followed by dark earth. They were given a spray with matt varnish then finished up with various light and then dark dirt pigment combos. Lastly the whole model was given a light dusting with Airfield Dust to knock back the contrast and blend all the colours together a bit better.