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-   -   DIY: 2006 X5 3.0i Spark Plugs using NGK Iridium BKR6EIX (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/97530-diy-2006-x5-3-0i-spark-plugs-using-ngk-iridium-bkr6eix.html)

StephenVA 12-29-2018 07:39 AM

:iagree:^Correct as always!
Once again you are blowing up bench racing "facts" with actual real world knowledge. How mean......

270_BMW 12-29-2018 01:47 PM

Sounds good! Thanks for the additional info!

Fifty150hs 12-29-2018 02:26 PM

I put these in my X5 last year and my mileage went DOWN.

StephenVA 12-30-2018 11:54 AM

Because you foot got heavier?

Fifty150hs 12-30-2018 01:34 PM

Quote:

Originally Posted by StephenVA (Post 1150432)
Because you foot got heavier?

Nope. Because the plugs.

cn90 12-30-2018 02:03 PM

In contrast, I got better fuel mileage with Iridium spark plugs.

StephenVA 12-31-2018 09:42 AM

Me too but that is just a small sample.

I would recommend that anyone who have a drop off in fuel economy do a recheck on plug gaps, coil connections, pull codes, and perform a good visual for vacuum lines etc not connected.

Fifty150hs 12-31-2018 12:25 PM

Quote:

Originally Posted by StephenVA (Post 1150552)
Me too but that is just a small sample.

I would recommend that anyone who have a drop off in fuel economy do a recheck on plug gaps, coil connections, pull codes, and perform a good visual for vacuum lines etc not connected.

Did all that. No codes, no loose vacuum lines or leaks, just lower fuel mileage.

StephenVA 02-10-2019 09:52 AM

Bump for more exposure as way too many owners of X5 left the normal fall maintenance of plug changing time to "it now winter and I have hard starting etc." Gee maybe when it is warm you should do all the pre season prep work like oil changes, Oil Separator, vacuum lines, cooling systems, brake, air intake checks? NAAAAAAAaaa wait until it is really cold then do it.

Now I am off to fix a no fuel pressure isssue after hand washing issue.... looks like pump, fuse, relay? Testing we will go, testing we will go,.......

Fifty150hs 01-29-2020 02:40 PM

Here's a link as a follow on to this discussion: https://xoutpost.com/bmw-sav-forums/...ium-plugs.html

Pulled iridium plugs after 36000 miles and the gap had opened up .020"+ and the electrodes were melted. Some suggested they were fake as I purchased from Amazon. Maybe. I don't know. I'm going to purchase a new set from Rockauto.com assuming they have a higher probability of not being fake and see what happens. If they were it could be why my mileage went down when I installed them.


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