GM Volt Forum banner

Spark plugs - non O.E.?

5027 Views 13 Replies 10 Participants Last post by  srmarti
Has anyone experimented with non-OE (i.e. non-Iridium) plugs in our ICEs?

It has been a long standing argument among the VW community (cars in the 2000s and newer generations) that you get (significantly?) better fuel economy with Copper plugs over Iridium at the cost of the plugs wearing out 2-3x faster.

At present I drive a lot of ICE miles, so I'd be willing to Guinea pig myself if I can determine what plugs are "compatible"
1 - 1 of 14 Posts
20K replacement cycle is 1-2 years for more drivers. There is no way I'd want to change spark plugs that often. Good luck on your tests and please report back. :)
Though for a volt that could be far longer. Perhaps 100 driven, 20 on the engine.
Could be an interesting way to boost MPG with little effect (if it's even a measurable difference)
For sure the volt usage pattern would make it easier to measure such a difference as opposed to an ICE-only which has many, many more variables per tank of gas.
1 - 1 of 14 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.