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#2764202 - 10/05/12 08:44 PM Should I use heavier weight oil?
Gebo Offline


Registered: 09/18/02
Posts: 672
Loc: VA
1993 Isuzu Trooper with 277,000 miles. Is using about a qt or 2 every 3000 miles. Currently using 5W-30 Penn Yellow bottle. It's got a few leaks as well. Live in SW VA near NC border. Normally 10-90 degrees.

Should I go up to a 10W-40 or a 5W-40 or what?
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#2764208 - 10/05/12 08:47 PM Re: Should I use heavier weight oil? [Re: Gebo]
Chris142 Offline


Registered: 06/05/03
Posts: 11262
Loc: apple valley, ca
I'd try 10w30 to see if that makes any difference
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02 Jeep Wrangler super-s 10/30
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#2764217 - 10/05/12 08:55 PM Re: Should I use heavier weight oil? [Re: Gebo]
spasm3 Offline


Registered: 05/30/10
Posts: 3594
Loc: north carolina
A high mileage 5-30 first, then if that does not help , go up in weight to a 5w 40/10w 40.
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#2764234 - 10/05/12 09:15 PM Re: Should I use heavier weight oil? [Re: Gebo]
Gebo Offline


Registered: 09/18/02
Posts: 672
Loc: VA
OK. I'm gonna wait on some sort of consensus...Not gonna be clear winner like in the 1st presidential debate.
_________________________
'98 LEX LS400 190K
'00 LEX GS300 135K
'01 LEX IS300 145K
'01 4Runner 180K
'01 Integra GSR 80K
'94 Nissan Sentra 175K
'89 Prelude 220K
'08 Chevy Van 6.0 105K


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#2764240 - 10/05/12 09:22 PM Re: Should I use heavier weight oil? [Re: Gebo]
Topo Offline


Registered: 12/02/11
Posts: 660
Loc: Perrysburg Ohio
If it's the valve seals causing the loss of oil, perhaps a high mileage oil would work. But if it's getting past the rings than a thicker oil would be more beneficial.
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129,000 Miles On Engine and Climbing
Current: Napa Syn. 10W30/P1 Filter
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#2764248 - 10/05/12 09:29 PM Re: Should I use heavier weight oil? [Re: Topo]
chubbs1 Offline


Registered: 06/09/10
Posts: 4574
Loc: Merritt Island FL, USA
Originally Posted By: Topo
If it's the valve seals causing the loss of oil, perhaps a high mileage oil would work. But if it's getting past the rings than a thicker oil would be more beneficial.


+1

Here you go, try a good HM oil like M1 HM. Valvoline ML is OK too but I think you should just try the better one off the bat. Give it a couple tries. If It does not do anything after 2 OCI's or you still have to add 2 qts at the 6k mile mark, switch over to a thicker oil like 10w40.
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#2764251 - 10/05/12 09:31 PM Re: Should I use heavier weight oil? [Re: Gebo]
Noey Offline


Registered: 10/29/10
Posts: 128
Loc: Ct., USA
What does Isuzu recommend? Don't change viscosity based only on mileage, nor would I recommend 'High mileage' oils...i think that's a lot of marketing hype. A qt. every 3k isn't significant at 277k, especialy when you've also got leaks.

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#2764261 - 10/05/12 09:36 PM Re: Should I use heavier weight oil? [Re: Gebo]
Garak Offline


Registered: 12/05/09
Posts: 11194
Loc: Regina, Saskatchewan, Canada
Perhaps try MaxLife 5w-30. It certainly slowed the leaks in the old F-150. I don't know how well it works with consumption per se, since it didn't burn oil, just leaked it like crazy. As chubbs1 mentioned, give it a couple OCIs at least, regardless of which one you choose. Additionally, I don't think there's a lot wrong with trying 10w-30 in your climate, either.
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2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Hastings LF113
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#2764270 - 10/05/12 09:40 PM Re: Should I use heavier weight oil? [Re: Topo]
Gebo Offline


Registered: 09/18/02
Posts: 672
Loc: VA
Originally Posted By: Topo
If it's the valve seals causing the loss of oil, perhaps a high mileage oil would work. But if it's getting past the rings than a thicker oil would be more beneficial.


SOOO...maybe a HM thicker oil would do the trick???? It's not smoking on start up if that helps diagnosis.
_________________________
'98 LEX LS400 190K
'00 LEX GS300 135K
'01 LEX IS300 145K
'01 4Runner 180K
'01 Integra GSR 80K
'94 Nissan Sentra 175K
'89 Prelude 220K
'08 Chevy Van 6.0 105K


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#2764276 - 10/05/12 09:44 PM Re: Should I use heavier weight oil? [Re: Noey]
ABerns Offline


Registered: 08/11/10
Posts: 408
Loc: Iowa
Originally Posted By: Noey
What does Isuzu recommend? Don't change viscosity based only on mileage, nor would I recommend 'High mileage' oils...i think that's a lot of marketing hype. A qt. every 3k isn't significant at 277k, especialy when you've also got leaks.


I'll place my vote for this. 1qt every 3k miles isn't a lot.

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#2764287 - 10/05/12 09:54 PM Re: Should I use heavier weight oil? [Re: Gebo]
Doog Offline


Registered: 10/24/11
Posts: 3440
Loc: Ohio
15w40 rotella
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#2764300 - 10/05/12 10:06 PM Re: Should I use heavier weight oil? [Re: Doog]
dparm Offline


Registered: 04/19/10
Posts: 12487
Loc: Chicago, IL
Originally Posted By: Doog
15w40 rotella


Way too thick.

Try a 5w30 HM first.
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#2764301 - 10/05/12 10:07 PM Re: Should I use heavier weight oil? [Re: Gebo]
BillyTheKid Offline


Registered: 10/12/11
Posts: 415
Loc: ny
I'd try maxlife first in a weight near what the car calls for. I'd vote the rotella as next try if that doesn't work. M1 hm is also an option but I think it's too pricey if you're going through oil, plus from what I've tried...the maxlife slowed my burning better and cost less.

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#2764302 - 10/05/12 10:07 PM Re: Should I use heavier weight oil? [Re: Gebo]
JimPghPA Offline


Registered: 08/22/09
Posts: 2804
Loc: Pittsburgh,PA U.S.A.
Try GC, and if that does not slow the consumption, go up in weight like T6 Rotella 5W-40, or maybe even Castrol 5W-50.
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#2764312 - 10/05/12 10:18 PM Re: Should I use heavier weight oil? [Re: Gebo]
toneydoc Offline


Registered: 12/16/11
Posts: 962
Loc: War Eagle
dparm thinks like I do. Use a HM 5ww30 because winter is coming. If you have to add a quart or two, so what. At least you know you will have good oil in the motor. Next summer you could try a higher weight oil. Valvoline Nextgen 5w30 is my vote if you are counting. You can be a little green in the process also. cheers
_________________________
1994 Jeep 136k Nextgen 5w30HM
2014 Camry 0k Toyo 5w20
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