So I'm not expecting an easy answer here but curious if more advanced detailers may have some ideas/pointers/tips.
Car is a never before detailed Tacoma truck and as you can see in the pics, it's in pretty nasty shape. I'm trying to spruce up the interior right now.
The difficulty I'm encountering is the soiled plastic door area. Not the fabric area, as Ultima car shampoo did a great job at cleaning it up.
In the pics you can see it's pretty nasty. Some areas have been 'rubbed' so much it's super smooth...

I've thrown Ultima car shampoo gel, dawn, Sonus APC at 20:1. Method has been spray, agitate with tooth brush and wipe off... Well let's just say that the results are NOT impressive and very minimal grim gets off...
I have tried a more mechanical elbow grease approach and used a used sponge with Ultima and it worked better, but I was putting quite a bit of pressure and still some crevasses in that plastic were tough to get at... I could see this working and since the driver door is the worst, my arm may get a good exercise by doing so but I'd rather resort to that as the last option.
My worry is that applying to much elbow grease will 'scratch' the surface. The area I did though did not appear to be scratched in any visible way though just as an FYI.
My question is thus:
What do other use for those really worn & dirty areas?
Is there a risk of scratching the plastic or is there another product that is better at 'penetrating' or 'dissolving' that nasty stuff?
Maybe try more concentrated Sonus apc dilution?
I also have access to a steam machine, the ones you typically use for household and clothing... but it produces hot water vapor, maybe I could harness some of that cleaning ability...
Any thoughts?
Pics make it actually look better than it is! It's way dirtier in reality.
Some randomn pics of the interior to give you a sense...


Car is a never before detailed Tacoma truck and as you can see in the pics, it's in pretty nasty shape. I'm trying to spruce up the interior right now.
The difficulty I'm encountering is the soiled plastic door area. Not the fabric area, as Ultima car shampoo did a great job at cleaning it up.
In the pics you can see it's pretty nasty. Some areas have been 'rubbed' so much it's super smooth...

I've thrown Ultima car shampoo gel, dawn, Sonus APC at 20:1. Method has been spray, agitate with tooth brush and wipe off... Well let's just say that the results are NOT impressive and very minimal grim gets off...
I have tried a more mechanical elbow grease approach and used a used sponge with Ultima and it worked better, but I was putting quite a bit of pressure and still some crevasses in that plastic were tough to get at... I could see this working and since the driver door is the worst, my arm may get a good exercise by doing so but I'd rather resort to that as the last option.
My worry is that applying to much elbow grease will 'scratch' the surface. The area I did though did not appear to be scratched in any visible way though just as an FYI.
My question is thus:
What do other use for those really worn & dirty areas?
Is there a risk of scratching the plastic or is there another product that is better at 'penetrating' or 'dissolving' that nasty stuff?
Maybe try more concentrated Sonus apc dilution?
I also have access to a steam machine, the ones you typically use for household and clothing... but it produces hot water vapor, maybe I could harness some of that cleaning ability...
Any thoughts?
Pics make it actually look better than it is! It's way dirtier in reality.
Some randomn pics of the interior to give you a sense...

