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#4684561 - 03/04/18 08:27 PM Chevy 4.3 Mobil 1 5w-30
troutfisher Offline


Registered: 09/05/16
Posts: 27
Loc: appalachia va
I have 2005 chevy 1500 with the 6 cylinder 4.3

Hae always used mobil 1 syn 5w-30 5 quart jug

Questions

Is the a good oil for this motor?

On a cold start it is perfect,but about 3-4 mins running after it has a slight lifter tick,but once it fully warms up and the tick goes away,is this a oil issue or just normal?

Thanks




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#4684582 - 03/04/18 08:48 PM Re: Chevy 4.3 Mobil 1 5w-30 [Re: troutfisher]
JHZR2 Offline



Registered: 12/14/02
Posts: 41468
Loc: New Jersey
That's the old iron version, not the new one, right?

I have a 98 S-10, old iron 4.3, have run lots of oils through it though not due to age, due to time.

Ive found that the filter can cause a tick at startup. Now, not sure how the full size is set up - on mine, it's a remote mount on its side (pf52 type).

I found that fram orange and the old ST filters caused it in the cold. FU, purolator pure one, wix, don't.

So it may entirely be oil filter related. I can't really see how the use of M1 vs any other oil could be the cause, unless something is really dirty or really worn. But even then I'd think it would be at startup.

Id start with the filter. Don't even change the oil. Go from there.

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#4684618 - 03/04/18 09:10 PM Re: Chevy 4.3 Mobil 1 5w-30 [Re: troutfisher]
SubieRubyRoo Online   content


Registered: 05/14/12
Posts: 895
Loc: Winchester, Indiana
The old 4.3 is 75% 350. It will take any oil, 30 weight or up. They shed alot of iron, so stick to reasonable OCIs. IMHO I wouldn't put a synthetic in it; you can toss PYB in it forever and it will run forever. It's a simple engine that just runs.

If you have clearance for the length, WIX makes a 2qt filter that fits 350s that should fit your filter mount. I forget the number of the filter but it shouldn't be too tough to find.

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#4684629 - 03/04/18 09:23 PM Re: Chevy 4.3 Mobil 1 5w-30 [Re: troutfisher]
Snagglefoot Online   content


Registered: 12/31/17
Posts: 1322
Loc: Alberta
Given the age of the engine, if the filter idea doesnít help, you might want to try 10-30 oil in case Itís caused by worn lifters. How many miles on the engine?


Edited by Snagglefoot (03/04/18 09:25 PM)

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#4684688 - 03/04/18 10:17 PM Re: Chevy 4.3 Mobil 1 5w-30 [Re: Snagglefoot]
troutfisher Offline


Registered: 09/05/16
Posts: 27
Loc: appalachia va
Truck has 145k on it.Truck is driven on alot steep mountain grades

I use wix original filters from o reilys

Would 10w-30 help with the lifter noise?

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#4684698 - 03/04/18 10:29 PM Re: Chevy 4.3 Mobil 1 5w-30 [Re: troutfisher]
barkingspider Offline


Registered: 12/22/13
Posts: 1965
Loc: socal
10w30 may help w the tick . Try it w an AC delco filter and see if that works
_________________________
06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)

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#4684752 - 03/05/18 01:43 AM Re: Chevy 4.3 Mobil 1 5w-30 [Re: troutfisher]
bubbatime Offline


Registered: 03/18/08
Posts: 5460
Loc: South Florida
Those engines were notorious for piston slap. That could be what you are hearing, instead of "lifter tap"

The pistons expand when they warm up and stop slapping. When they are cold they slap around the bore. Not a big deal.
_________________________
17 Chrysler Pacifica QS syn 0W20
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 ST syn 5W20
06 GMC Sierra Nextgen 10W30



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#4684759 - 03/05/18 02:23 AM Re: Chevy 4.3 Mobil 1 5w-30 [Re: bubbatime]
DesertDually Offline


Registered: 06/17/08
Posts: 60
Loc: Arizona, USA
Originally Posted By: bubbatime
Those engines were notorious for piston slap. That could be what you are hearing, instead of "lifter tap"

The pistons expand when they warm up and stop slapping. When they are cold they slap around the bore. Not a big deal.


I've never heard this in my life, and I've owned 4.3 V6 GM's for over 25 yrs continuously! Since the 4.3 is basically a 350 with 2 cylinders lopped off & a balance shaft fitted (in later years); how would the 4.3 be any more prone to piston slap than the venerable small block chevy V8?
_________________________
'07 Ram 3500 5.9 CTD
'02 Benz CLK 430
'03 Kawasaki KLX400,'00 Kawasaki ZX12R
'94 GMC S-15 4.3
'85 Benz 300 SD
'78 Benz 300 CD
'70 Case 580 CK

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#4684768 - 03/05/18 03:09 AM Re: Chevy 4.3 Mobil 1 5w-30 [Re: troutfisher]
Triple_Se7en Offline


Registered: 12/04/04
Posts: 8587
Loc: 1/2 hr. north of Detroit
Originally Posted By: troutfisher
I have 2005 chevy 1500 with the 6 cylinder 4.3

Hae always used mobil 1 syn 5w-30 5 quart jug

Questions

Is the a good oil for this motor?

On a cold start it is perfect,but about 3-4 mins running after it has a slight lifter tick,but once it fully warms up and the tick goes away,is this a oil issue or just normal?

Thanks


Make sure your filters have the red silicone ADBV. None of the AC Delcos (PF52 or 47) do anymore. I often used Fram Tough Guards, built differently than Wix.


Edited by Triple_Se7en (03/05/18 03:11 AM)

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#4684865 - 03/05/18 07:38 AM Re: Chevy 4.3 Mobil 1 5w-30 [Re: troutfisher]
BAJA_05 Online   content


Registered: 02/04/18
Posts: 289
Loc: Pennsylvania
Another agreement on trying a different filter. Go with a Fram Ultra once -- you can use that filter for multiple OCIs up to 20,000 miles the new ones are rated for. When ever I used a Super Tech or Purolator Classic on my neighbors truck -- 2000 Dodge 5.2L -- it had a couple second tick from start -- warm or cold out. When we switched to the Fram Ultra -- the tick went away immediately -- warm or cold out.

Dale
_________________________
2017 VW Jetta SE TSI 1.4L Turbo
PP Euro 0W40 & FU
2008 Acura TL 3.2L QSHM 5W20 & FU
2005 Subaru Baja AWD 2.5L N/A 5spd.
Rotella T6 5W30 & ST

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#4685006 - 03/05/18 09:54 AM Re: Chevy 4.3 Mobil 1 5w-30 [Re: DesertDually]
bubbatime Offline


Registered: 03/18/08
Posts: 5460
Loc: South Florida
Originally Posted By: DesertDually
Originally Posted By: bubbatime
Those engines were notorious for piston slap. That could be what you are hearing, instead of "lifter tap"

The pistons expand when they warm up and stop slapping. When they are cold they slap around the bore. Not a big deal.


I've never heard this in my life, and I've owned 4.3 V6 GM's for over 25 yrs continuously! Since the 4.3 is basically a 350 with 2 cylinders lopped off & a balance shaft fitted (in later years); how would the 4.3 be any more prone to piston slap than the venerable small block chevy V8?


You've NEVER heard of hypereutectic piston slap in a small block chevy/GM 4.3L? Never? maybe different years were more prevalent than others, but its definitely a common complaint.
_________________________
17 Chrysler Pacifica QS syn 0W20
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 ST syn 5W20
06 GMC Sierra Nextgen 10W30



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#4685045 - 03/05/18 10:26 AM Re: Chevy 4.3 Mobil 1 5w-30 [Re: bubbatime]
dogememe Offline


Registered: 04/15/17
Posts: 453
Loc: SF BAY AREA, CA
Originally Posted By: bubbatime
Originally Posted By: DesertDually
Originally Posted By: bubbatime
Those engines were notorious for piston slap. That could be what you are hearing, instead of "lifter tap"

The pistons expand when they warm up and stop slapping. When they are cold they slap around the bore. Not a big deal.


I've never heard this in my life, and I've owned 4.3 V6 GM's for over 25 yrs continuously! Since the 4.3 is basically a 350 with 2 cylinders lopped off & a balance shaft fitted (in later years); how would the 4.3 be any more prone to piston slap than the venerable small block chevy V8?


You've NEVER heard of hypereutectic piston slap in a small block chevy/GM 4.3L? Never? maybe different years were more prevalent than others, but its definitely a common complaint.


I've owned like half a dozen 5.0/5.7L SBC trucks/SUVs and NEVER heard piston slap, even with a bunch of miles, questionable maintainance from however many previous owners, etc. I was under the impression this was a common issue on the 4.8/5.3/6.0 LS engines but not really ever something common on the older engines.
_________________________
2007 Crown Vic 4.6 ~122K: Daily Driver
2010 Escape 2.5 ~66K: Rented on Turo
1997 Suburban 5.7 ~213K: Storage Unit

7K Mile OCIs with Valvoline Advanced Synthetic/SynPower 5W-30

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