- Points
- 407
- Car
- 2002 Clio 172
What do the heat ratings mean on spark plugs and how would I decide if I needed a hotter or cooler one?
Is it right that a highly tuned engine needs a hotter plug to take the heat out of the tip more efficiently? (Or is that what they mean by a cooler plug? I'm totally confused on this one!)
Is it right that a highly tuned engine needs a hotter plug to take the heat out of the tip more efficiently? (Or is that what they mean by a cooler plug? I'm totally confused on this one!)
Last edited: