Paint it black with either flat black or semi-gloss (satin). I would definetly stay away from any high gloss. I don't think that you need to use high temp paint. Along that line, I think that the high temp stuff tends to be alittle 'grey' in appearance for my liking.

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1992 500SEL 25K
1995 E320 40K
1995 SL600 120K
2002 JX8 Sport 43K
2005 Volvo S40 95K
2006 Isuzu NPR 304K (Frankencamper)
2007 Crown Victoria 150K
2014 Smart Electric 20K