Pennzoil Q&A

Click here to participate in the Pennzoil Q&A

Recent Topics
Open End Crowfoot Torque
by artbuc
09/01/15 06:58 AM
How to remove RainX from windshield?
by MoneyJohn
09/01/15 06:51 AM
The Esso cold weather oil videos - a paper on it
by Shannow
09/01/15 06:26 AM
Torque Specs
by MrJhynx
09/01/15 05:07 AM
Castrol Magnatec 5-30, 7100miles, 13 F150 Ecoboost
by KJSmith
08/31/15 11:52 PM
Interesting Mosin Nagant
by dlundblad
08/31/15 10:51 PM
Can Renewable Energy meet baseload power
by Shannow
08/31/15 10:11 PM
1999 454 V8 - RV Oil Advice Needed
by Nick1994
08/31/15 10:08 PM
new Jeep Patriot 2.4L...OCI & DIY recommendations
by kmrcstintn
08/31/15 09:36 PM
2008 f150 5.4 ticking noise
by hyperscion
08/31/15 09:31 PM
Going to Detroit this weekend
by donnyj08
08/31/15 08:47 PM
Twin Cities/MSP Twin Beech activity?
by Lapham3
08/31/15 08:09 PM
Newest Members
amy, rbrown2769, KJSmith, OnslaughtNZ, Zycat
55219 Registered Users
Who's Online
58 registered (aircooled, A_Harman, aquariuscsm, 72sub, Axe Man, 7 invisible), 942 Guests and 159 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
55219 Members
66 Forums
236756 Topics
3815233 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3435830 - 07/25/14 09:44 PM High Pb with 5w-40
sdan27 Offline


Registered: 06/07/09
Posts: 484
Loc: Michigan
I've done a few oil analysis with a 7.3L powerstroke engine I swapped into my 94 F250. Before I put the engine in I installed new bearings. The first four analysis were with Schaeffer 5w-40 and then I did two with Service Pro 15w-40 and then I did one with Delo 400 5w-40. The lead numbers are noticeably higher with all the 5w-40 results. Do you think this is something I need to worry about? I like using the 5w-40 in the winter as it helps my HEUI system run a lot easier.

Miles 5100, 10200, 13800, 9650, 5010, 9371, 9777
Oil Sch, Sch, Sch, Sch, SP, SP, Delo

Iron 25, 31, 37, 35, 18, 30, 38
Chrm 0, 0, 1, 0, 1, 1, 1
Alum 2, 1, 4, 3, 11, 15, 6
Copp 6, 10, 15, 10, 5, 7, 6
Tin 4, 6, 7, 4, 5, 7, 6
Lead 13, 23, 31, 35, 11, 17, 34
_________________________
'94 F250 Powerstroke. LF9691 primary oil. AH1141 air filter. FS1282, FF5320 fuel filter. WF2071 coolant filter.

Top
#3435838 - 07/25/14 09:51 PM Re: High Pb with 5w-40 [Re: sdan27]
Chris142 Offline


Registered: 06/05/03
Posts: 12844
Loc: apple valley, ca
whats your silicon numbers?
_________________________
02 Wrangler durablend 10w40
87 F250 Diesel Mystic 15w50
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Polaris Trailblazer delo 5w40

Top
#3435928 - 07/25/14 11:42 PM Re: High Pb with 5w-40 [Re: sdan27]
sdan27 Offline


Registered: 06/07/09
Posts: 484
Loc: Michigan
42, 37, 43, 23, 8, 8, 7. I figured that the high numbers came from rtv, gasket material when I put the engine back together.
_________________________
'94 F250 Powerstroke. LF9691 primary oil. AH1141 air filter. FS1282, FF5320 fuel filter. WF2071 coolant filter.

Top
#3435966 - 07/26/14 12:47 AM Re: High Pb with 5w-40 [Re: sdan27]
Chris142 Offline


Registered: 06/05/03
Posts: 12844
Loc: apple valley, ca
ya the single digit silicon isnt it.
_________________________
02 Wrangler durablend 10w40
87 F250 Diesel Mystic 15w50
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Polaris Trailblazer delo 5w40

Top
#3436013 - 07/26/14 06:08 AM Re: High Pb with 5w-40 [Re: sdan27]
gathermewool Offline


Registered: 01/09/09
Posts: 4200
Loc: New England
Any major difference in the detergent packages?

What's the difference in the 100C Cst?

It might just be a difference in chemistry composition causing non-detrimental spikes in lead. Just spit-balling
_________________________
14 Forester XT
GC 0W-30 + Subie blue filter
08 Civic LX (Auto)
VWB 5W-20 + Fram Ultra Guard filter

Top
#3437945 - 07/27/14 10:16 PM Re: High Pb with 5w-40 [Re: sdan27]
sdan27 Offline


Registered: 06/07/09
Posts: 484
Loc: Michigan
100 cst 13.1, 13.6, 13.8, 12.8, 12.7, 13, 12.2

Some shearing but only down to a 30w at the most.
_________________________
'94 F250 Powerstroke. LF9691 primary oil. AH1141 air filter. FS1282, FF5320 fuel filter. WF2071 coolant filter.

Top
#3452830 - 08/11/14 08:15 PM Re: High Pb with 5w-40 [Re: sdan27]
sdan27 Offline


Registered: 06/07/09
Posts: 484
Loc: Michigan
Do you think the lead numbers are something I should be concerned with then? Do you think its coming from my bearings or somewhere different.
_________________________
'94 F250 Powerstroke. LF9691 primary oil. AH1141 air filter. FS1282, FF5320 fuel filter. WF2071 coolant filter.

Top
#3453054 - 08/12/14 04:48 AM Re: High Pb with 5w-40 [Re: sdan27]
dnewton3 Online   content



Registered: 05/14/07
Posts: 6189
Loc: Indianapolis, IN
Pb in those engines generally has one source; bearings. I cannot tell you which one(s). Could be the ones you replaced; may not have seated well and now wearing. Or could be an unrelated bearing (one you didn't replace) that has finally got into damage. When you mention "new bearings", which ones? Crank, rod, cam, turbo?

At first blush, it seems the Cu went up and Pb followed, but when taking OCI duration into account, the numbers are not staggering.

Generally, the only metal that will accumulate with miles is Fe; the others should tend to have a bit of wear and then stagnate over the OCI.

Everything you've tried has been a 40 grade. If you want better starting, why not try a 30 grade? Perhaps see if that will do as well. I'm not suggesting this because I think "thinner" will do anything for the wear; it's just a nod towards your concern for winter. At this point, if you try a 30 grade and the wear does not get worse, and it helps in winter starts and idling, then you can settle on one fluid, pick one OCI duration, and then track the wear. You cannot really track wear well jumping around in fluid and OCI duration.
_________________________
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

Top
#3453766 - 08/12/14 05:17 PM Re: High Pb with 5w-40 [Re: sdan27]
sdan27 Offline


Registered: 06/07/09
Posts: 484
Loc: Michigan
I did the main and rod bearings. I used Clevite bearings. I'm going to see if the numbers stabilize a little more with the 15w-40 and if it does I'll probably try and find a 10w-30. Most HD 10w-30s available where I live are semisynthetic so we'll see if those bring up my lead numbers too.
_________________________
'94 F250 Powerstroke. LF9691 primary oil. AH1141 air filter. FS1282, FF5320 fuel filter. WF2071 coolant filter.

Top