answersLogoWhite

0


Best Answer

heat range. 7 is a "hotter" plug. That means it transfers more heat to the cylinder head during operation.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the difference between ngk-dpr7ea-9 and ngk-dpr9ea-9 spark plug?
Write your answer...
Submit
Still have questions?
magnify glass
imp