Necro, I've had a squiz around and am unsure on whether there is a remedy for that multi-layer texture glitch that I seem to be getting from Fuel Tanks Plus.
I've gone through the files to see if there was a conflict between assigned textures, or a shader issue (I use vanilla effects), I even re-downloaded it in the off-chance there was an incomplete file, but I just can't seem to fix the issue.
I've used this mod for yonks, and would love to continue doing so as it's immeasurably helpful!