im a getting ready to start detailing my dmax it is a carcole grey an has alot of small scatches in the paint an some real ruff spots behind all the wheels im not shure if ther chips or road grim im going to buff the truck with 3m compound an the a a glaze then a goog coat off wax is there any way to get rid of those ruff spots befor i do this. an am i going in the rite direction for trying to restore the paint on my new to me duramax
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if the rough spots are road grime use a degreaser before you buff/wax. If the truck has rough spots all over use a clay bar. I clay bar my truck about every 4 months depending on when i am going to buff/wax. using a clay bar will smooth out rough spots and make it feel smooth. do it before you buff and then look at it shine.

 

may wanna wetsand her and buff it out if it is really rough. it will take out scratchs that buff wont

 

Wash the truck first really well, then I would claybar it. Then go over it with the buffer and heavy cut compound doing one panel at a time that way you can see what scratches come out and what didn't. Then if they're is any scratches that didn't come out, wet sand em with 1500 grit sand paper, buff, polish whole truck, then wax. Will look new.