I used the AK wash for yellows verhicles to point out the details. I see many questions about the use of the AK products and what colors to use. The products are universal and you can use them on all sorts of colors. For example i love the AK winter streaking grime, you can use this as a wash, streaking or for making spots etc..
By thining the wash/streaking grime you can make several effects with just one product. When i use a pinwash i moisture the surface with AK oderles white spirit and bring on the wash. Don't be afraid to spill something you can use this to work it in to surface and create some nice effects. If you don't want this then use som normal e AK white spirit to remone the spots, just like that!
To town down the bright colors and to give it a used smooth finish i used a variation of oil colors. One again moisture the surface with AK oderles white spirit and make random tiny spots panel by panel. This way you create a wide variation on your model. Blend in the spots with a flat brush using AK white spirit, don' use the oderles version, this is less strong and the oils doesn't blend in well.
Once dry you notice a nice flat surface and if you want it even more flat just do it again! Take note that you have to let it dry for a day ore two before you work whit oils and white spirit again..
During the oil filtering i made some streaking as well with burnt umber oils. Later i shall use some AK products for more subtile streaking. But as you can see that oils are also a great way to make streaking!