What Spark Plug Do You Use?
#21
07-23-2013 | 07:44 AM
Grand HDF Member
Joined: Jan 2012
Posts: 4,057
Likes: 826
From: Oklahoma
I like the NGK DCPR6E, those familiar will note it is one heat range warmer than the equivalent factory plug. The are also $1.99 at Oreilly's. My experience was that I must not ride hard enough to keep the factory plugs clean and would notice some miss fire and loss of fuel mileage by 10,000 miles. The higher heat range seems to keep them clean, they are almost a "lifetime" plug as there has been no loss of performance in 20,000+ running. I check them at each 5000 mile service. There is no ping, I get easy, dependable starts and fuel economy a little better than many here report. This is in a stock 08 96 ci engine. Just as everyone else, I'll stick with my choice as long as they perform well.
#25
07-23-2013 | 12:11 PM
#27
07-23-2013 | 01:24 PM
Ultimate HDF Member
Joined: Oct 2006
Posts: 5,977
Likes: 78
From: Nevada
I like the NGK DCPR6E, those familiar will note it is one heat range warmer than the equivalent factory plug. The are also $1.99 at Oreilly's. My experience was that I must not ride hard enough to keep the factory plugs clean and would notice some miss fire and loss of fuel mileage by 10,000 miles. The higher heat range seems to keep them clean, they are almost a "lifetime" plug as there has been no loss of performance in 20,000+ running. I check them at each 5000 mile service. There is no ping, I get easy, dependable starts and fuel economy a little better than many here report. This is in a stock 08 96 ci engine. Just as everyone else, I'll stick with my choice as long as they perform well.
I've tried most NGK, Autolite, Champion, in stock and one step colder. No noticeable difference in performance. The iridium NGKs do seem to last longer but probably not worth the extra cost.
