|There has been some debate on this over the years:
1. whether we want to keep the heat contained or let it escape
2. If it actually reduces under-hood temps to a signficant extent
3. If it causes premature cracking?
What is the preferred coating? Does the brand really matter? (Jet hot vs. Swain White Lighting vs. generic ceramic)
Would be very interested to find out what the most recent opinions/facts/ might be.