Recent Topics
Hemi MDS issues are how common?
by Gasbuggy. 12/18/18 03:21 AM
Why use Redline and Redline Clone oils...
by burla. 12/17/18 11:38 PM
Tire choice
by CincyReds. 12/17/18 11:14 PM
Transmission fluid leak
by dawgn86. 12/17/18 07:53 PM
QuickJack BL-5000SLX and my Optima...
by WhizkidTN. 12/17/18 07:23 PM
Champion Air Filter Opinions?
by JerryBob. 12/17/18 06:18 PM
Tundra transfer case plug torque (Borg Warner)
by Idlewild294. 12/17/18 06:03 PM
Winter tire question?
by Muskieteer. 12/17/18 05:31 PM
Who makes good ball joints these days?
by GSCJR. 12/17/18 04:51 PM
Bought a used Ford Fusion
by krismoriah72. 12/17/18 04:14 PM
Valvoline NextGen Tech Oil
by DirtyOilGuy. 12/17/18 04:08 PM
Witty comment regarding a lame car
by Number_35. 12/17/18 03:43 PM
'80s oil literature
by Number_35. 12/17/18 03:26 PM
Recommend on oil for 2017 Kia Sportage 2.4
by SlavaB. 12/17/18 02:57 PM
No more Delo at my Costco. T4 now
by BeerCan. 12/17/18 02:16 PM
Found this
by davedude. 12/17/18 02:15 PM
Practice CLS material
by RDY4WAR. 12/17/18 01:52 PM
2005 Chevy Silverado 5.3 vortex
by MSpeer. 12/17/18 12:01 PM
Newest Members
hopsofir, genera2800, oghl, hdlss, dsmdylan
66711 Registered Users
Who's Online Now
27 registered members (53' Stude, Char Baby, D0nat, biron, 4WD, 3 invisible), 823 guests, and 33 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics295,205
Posts4,929,884
Members66,711
Most Online2,553
Oct 27th, 2018
Donate to BITOG
Previous Thread
Next Thread
Print Thread
Hop To
Spark Plug Wear #4595082
12/05/17 02:18 PM
12/05/17 02:18 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
If you pull one of your spark plugs out and measure the electrode gap, is that a good indication of the gap for the rest of the spark plugs ?

Re: Spark Plug Wear [Re: Merkava_4] #4595088
12/05/17 02:23 PM
12/05/17 02:23 PM
Joined: Jun 2003
Posts: 17,839
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,839
Deplorable in apple valley, ca
yes


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Spark Plug Wear [Re: Merkava_4] #4595100
12/05/17 02:28 PM
12/05/17 02:28 PM
Joined: Sep 2015
Posts: 1,598
USA
mk378 Offline
mk378  Offline
Joined: Sep 2015
Posts: 1,598
USA
Certainly if you take one out and find it's worn out, time to replace them all.

Re: Spark Plug Wear [Re: Merkava_4] #4595164
12/05/17 03:17 PM
12/05/17 03:17 PM
Joined: Sep 2007
Posts: 1,029
TX, USA
JMJNet Offline
JMJNet  Offline
Joined: Sep 2007
Posts: 1,029
TX, USA
within a certain range, yes. Unless you can measure it to the super micro units likw 0.0000000000000000000000000000000000001 micrometers

Last edited by JMJNet; 12/05/17 03:18 PM.

  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: Spark Plug Wear [Re: JMJNet] #4595172
12/05/17 03:29 PM
12/05/17 03:29 PM
Joined: Jan 2010
Posts: 1,740
Rochester, NY
NateDN10 Offline
NateDN10  Offline
Joined: Jan 2010
Posts: 1,740
Rochester, NY
Originally Posted By: JMJNet
within a certain range, yes. Unless you can measure it to the super micro units likw 0.0000000000000000000000000000000000001 micrometers

10^-43 meters is very small indeed. 100 million times smaller than the Planck length, which is believed to be the shortest meaningful length.

(Yes, I realize you were using hyperbole but I couldn't help myself from converting to scientific notation!)

Last edited by NateDN10; 12/05/17 03:31 PM.

2016 Mazda3 - 20,000 mi.
2011 Toyota Sienna - 100,000 mi.
Re: Spark Plug Wear [Re: Merkava_4] #4595253
12/05/17 04:56 PM
12/05/17 04:56 PM
Joined: Nov 2006
Posts: 20,600
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,600
MA, Mittelfranken.de
With your luck you would pull the one the previous owner replaced 3 mo ago looking for a misfire.


ASE L1, Master. Deutsch Meisterbrief.
Re: Spark Plug Wear [Re: Trav] #4595317
12/05/17 06:13 PM
12/05/17 06:13 PM
Joined: Aug 2010
Posts: 5,947
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,947
Champlain/Hudson Valley
Thanks above for doing the math. Counting all those zeros would've killed my eyesight.

Re: Spark Plug Wear [Re: Merkava_4] #4595490
12/05/17 09:30 PM
12/05/17 09:30 PM
Joined: May 2016
Posts: 720
Canada
i_hate_autofraud Offline
i_hate_autofraud  Offline
Joined: May 2016
Posts: 720
Canada

On late model engines:

On Iridium tipped plugs, I'd go by mileage. Reason is that there's a tiny
hard to see iridium pad on the ground electrode that's super thin, when it burns
away at about 100K miles, the gap will look OK and even gage OK, but as the iridium
disappears off the ground, you'll suddenly burn away the plug to a misfire and damage
the Cats. The fuel mixture is lean and hot so the soft steel in the ground electrode
won't take it.


BOB IS THE OIL GUY® Powered by UBB.threads™