Recent Topics
Pennzoil Platinum at Walmart
by TheLawnRanger
06/19/18 11:21 PM
Mopar OEM and Fram Ultra Oil filters, '18 Jeep JL
by IndyFan
06/19/18 10:45 PM
Whatís the odds..
by Eric Smith
06/19/18 09:51 PM
Who can relate?
by Reddy45
06/19/18 09:43 PM
No more oil changes
by goodtimes
06/19/18 09:19 PM
Separating toddlers from their parents?
by fdcg27
06/19/18 08:50 PM
gm 8.6 truetrac
by Spitter
06/19/18 08:45 PM
New addition to my garage: 2000 Corvette FRC
by MrHorspwer
06/19/18 08:34 PM
Rockauto 5% off
by Spitter
06/19/18 08:32 PM
fumoto oil valve
by Santo
06/19/18 08:19 PM
Grand solar minimum...
by ridgerunner
06/19/18 07:57 PM
Pentofrost coolant $10 Autozone
by PD001
06/19/18 07:49 PM
The things you find cleaning Garage 30+ btls slob
by digger327
06/19/18 07:20 PM
Castrol GTX Magantec 0w20 - 6 pack $21.99 - Amazon
by 04SE
06/19/18 07:07 PM
Havoline Pro DS 5w20 $3.15/quart - Amazon
by 04SE
06/19/18 07:06 PM
Needing New Dipstick
by Geauxtiger
06/19/18 05:11 PM
'98 Mercedes E300TD Rotella T5 10W-30 5k miles
by KenO
06/19/18 04:35 PM
Premium guard oil filters
by Jaha24k
06/19/18 04:09 PM
76 super motor oil- synthetic blend 5w-30
by Jaha24k
06/19/18 04:07 PM
Who makes the Mopar 5038041AA filter?
by Quattro Pete
06/19/18 03:55 PM
Newest Members
Shassis, Santo, aligoodn, memyself, MichiganKid419
65274 Registered Users
Who's Online
34 registered (carviewsonic, bsmithwins, Bjornviken, bdcardinal, 2015_PSD, Bandito440, 1 invisible), 951 Guests and 40 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65274 Members
67 Forums
285629 Topics
4766655 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 4 1 2 3 4 >
Topic Options
#4462887 - 07/18/17 01:41 PM Top Tier 87 still pinging/spark knock
kpatter Offline


Registered: 08/26/11
Posts: 60
Loc: texas
2004 Nissan Frontier - 4 cyl - KA24DE engine- 120K

I have been buying Shell 93 for about a year and the truck runs great and doesn't ping during uphill acceleration, but the 93 octane is about 50 cents more/gallon and I have been thinking this is overkill. Last week I filled up with Valero 87 (top tier gas sticker on the pump). Well now the truck is back to pinging under acceleration on hills etc..

I guess I thought the 87 would not ping since it was top tier but it does.
I have seen all over these forums where buying 93 octane is a waste of money for a truk such as mine.

Thoughts?

Top
#4462889 - 07/18/17 01:42 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
mclasser Offline


Registered: 04/13/13
Posts: 2227
Loc: The Northeast
When's the last time you did a tune up?
_________________________
2018 Hyundai Elantra VE -- 3K
2013 Honda Pilot EX-L 4WD -- 55K
2002 Honda Accord EX-L -- 210K


Top
#4462895 - 07/18/17 01:47 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 3970
Loc: New England
Top Tier doesn't affect the octane level, and I guess the 93 is not a waste if it makes your truck run better.
Do you have a mid grade you can try using? Might save you some money compared to 93 and still stop your pinging.
_________________________
2014 Forester XT, 80500 miles
Last Change;
Valvoline Full Synthetic 5W30 d1G2
Tokyo Roki 15208AA170 filter

Top
#4462897 - 07/18/17 01:49 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Higher octane in a car not specified for higher octane is a bandaid fix for spark knock. Your cylinders might have carbon deposits.
_________________________
too many cars and oil combinations to list in 150 characters or less

Top
#4462901 - 07/18/17 01:52 PM Re: Top Tier 87 still pinging/spark knock [Re: Virtus_Probi]
kpatter Offline


Registered: 08/26/11
Posts: 60
Loc: texas
I understand top tier doesn't affect the octane rating - but it does mean better quality gas.. The owners manual does say a little pinging is natural and ok but I hate the sound..

Top
#4462902 - 07/18/17 01:52 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
EdwardC Offline


Registered: 11/14/13
Posts: 1862
Loc: Chicago, IL
While I agree that you shouldn't need anything higher than 87 octane, there might be something else that needs attention that is causing the pinging. Also, I don't think being Top Tier affects the ping. Maybe there's a bunch of carbon build up?

Top
#4462903 - 07/18/17 01:53 PM Re: Top Tier 87 still pinging/spark knock [Re: L_Sludger]
kpatter Offline


Registered: 08/26/11
Posts: 60
Loc: texas
Carbon deposits - I do 99 percent city driving in Dallas. How do I remove the carbon?

Top
#4462909 - 07/18/17 01:59 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Originally Posted By: kpatter
Carbon deposits - I do 99 percent city driving in Dallas. How do I remove the carbon?

I might get yelled at, but I've used both seafoam and careful distilled water ingestion into the intake to clean up cylinders. The water ingestion method won't leave deposits on your spark plugs but you need to be careful not to suck too much in at one time. You typically do it by attaching a vacuum line to a container with Seafoam or water in it, with the engine warm and running. Let the engine suck up a cup or so, then shut it down for ten minutes. Start it again. Drive it aggressively and enjoy the smoke out of the tailpipe, then repeat until satisfied, and then change your oil if you want to be extra safe. Done.
_________________________
too many cars and oil combinations to list in 150 characters or less

Top
#4462910 - 07/18/17 01:59 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
EdwardC Offline


Registered: 11/14/13
Posts: 1862
Loc: Chicago, IL
Originally Posted By: kpatter
Carbon deposits - I do 99 percent city driving in Dallas. How do I remove the carbon?


You could try slowly dribble in Seafoam or even just plain water into a vacuum line. Check out youtube. A slower approach would be to add a heavy dose of a PEA based cleaner like Techron into the gas.

I think that Top Tier mostly specifies that there are minimum levels of detergent in the gas, not much else about the gas itself.

Top
#4462913 - 07/18/17 02:03 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
Rolla07 Offline


Registered: 11/05/11
Posts: 4734
Loc: MTL, CANADA
Id dose it with techron or guaranteed to pass in 2 tanks one after another and see how it does on 87 after. If still no good, try 89 octane and see how it does. Worst case ur stuck using 93. Are u sure its pinging that you hear?
_________________________
2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967


Top
#4462916 - 07/18/17 02:05 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
With all respect, I don't think a cure in a bottle gas additive will fix his problem; it will just erode the deposits in his bank account LOL
_________________________
too many cars and oil combinations to list in 150 characters or less

Top
#4462921 - 07/18/17 02:13 PM Re: Top Tier 87 still pinging/spark knock [Re: L_Sludger]
kpatter Offline


Registered: 08/26/11
Posts: 60
Loc: texas
Below is a copy from the owners manual...


However, now and then you may notice light spark knock for a short time while accelerating or driving uphills .This is not a cause for concern, because you get the greatest fuel benefit when there is light spark knock for a short time under heavy engine load.

Top
#4462923 - 07/18/17 02:14 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
Olas Offline


Registered: 12/11/13
Posts: 3933
Loc: Manchester, England
If a drink of water and high octane fuel doesn't stop the ping then check for KR, knock sensor might be on its way out. Manually check timing in case the dizzy or the trigger wheel has slipped.

Otherwise colder plugs, low temp stat, then remap for less advance.
_________________________
Cable ties should hold it

Top
#4462924 - 07/18/17 02:14 PM Re: Top Tier 87 still pinging/spark knock [Re: kpatter]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Originally Posted By: kpatter
Below is a copy from the owners manual...


However, now and then you may notice light spark knock for a short time while accelerating or driving uphills .This is not a cause for concern, because you get the greatest fuel benefit when there is light spark knock for a short time under heavy engine load.

Sometimes what they say in the owners manual doesn't jive well with extended post-warranty longevity.
What I've learned is that knock causes a shock to the cylinder it occurs in. It damages the conrod and piston of the affected cylinder, damages bearing surfaces, damages head gasket material, and is every last bit of undesirable in a traditional gas motor. It is also distressing to nearby wild rabbits, increases the driver's blood pressure, and can cause a check engine light to appear.
_________________________
too many cars and oil combinations to list in 150 characters or less

Top
#4462931 - 07/18/17 02:18 PM Re: Top Tier 87 still pinging/spark knock [Re: Virtus_Probi]
wemay Offline


Registered: 04/04/12
Posts: 8864
Loc: Southeast Florida
Originally Posted By: Virtus_Probi
Top Tier doesn't affect the octane level...


Exactly
_________________________
2017 Hyundai Sonata Sport 2.4L
2013 Hyundai Santa Fe Sport 2.0T

Top
Page 1 of 4 1 2 3 4 >