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#2640663 - 05/30/12 07:51 PM What is the best motor oil for me???
MGUMBY64 Offline


Registered: 05/28/12
Posts: 1
Loc: Pa.
Hello everyone, I drive a 1999 Jeep Grand Cherokee Limited with 4.7 liter V8 engine with 150,000 miles on her and I was wondering if you could recommend a motor oil for me? I drive mostly residential but recently I have been putting my foot in it whenever I can since I added a Dual cone cold air intake.( I like the way the engine sounds) I will be changing the exhaust soon.
_________________________
Peace Be With You
GUMBY
1999 Jeep GRAND CHEROKEE LIMITED

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#2640666 - 05/30/12 07:52 PM Re: What is the best motor oil for me??? [Re: MGUMBY64]
buster Offline


Registered: 11/16/02
Posts: 29205
Loc: NJ
I would consider one of the excellent High Mileage oils on the market such as Valvoline MaxLife, QS Defy or Mobil 1 High Mileage. All of these can be found at WM.
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2014 Mazda 3 S GT AT - OE oil
2003 Forester XS 5spd - M1 0w40

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#2640688 - 05/30/12 08:10 PM Re: What is the best motor oil for me??? [Re: buster]
MuzzleFlash40 Offline


Registered: 06/20/11
Posts: 764
Loc: Ohio
Originally Posted By: buster
I would consider one of the excellent High Mileage oils on the market such as Valvoline MaxLife, QS Defy or Mobil 1 High Mileage. All of these can be found at WM.


+1
_________________________
06 Grand Marquis Ultimate W/ HPP - 104k
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Mobil 1 HM 5w20 & Wix
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#2640702 - 05/30/12 08:31 PM Re: What is the best motor oil for me??? [Re: MGUMBY64]
dave1251 Offline


Registered: 07/15/05
Posts: 7246
Loc: Maricopa, AZ
"What is the best motor oil for me???"

The one you like to use the most.
_________________________
make the inside of your engine oil cap white.
don't use.

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#2640716 - 05/30/12 08:47 PM Re: What is the best motor oil for me??? [Re: buster]
hardcore302 Offline


Registered: 11/23/09
Posts: 2428
Loc: Suffolk County, NY
Originally Posted By: buster
I would consider one of the excellent High Mileage oils on the market such as Valvoline MaxLife, QS Defy or Mobil 1 High Mileage. All of these can be found at WM.


this
_________________________
2007 Ford Mustang GT - FL-820S filter
2011 Chevy Equinox LT - Driveworks filter

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#2640722 - 05/30/12 08:55 PM Re: What is the best motor oil for me??? [Re: MGUMBY64]
dave1251 Offline


Registered: 07/15/05
Posts: 7246
Loc: Maricopa, AZ
Why is there a recommendations for HM oil? OP is your engine consuming oil or leaking from some where? If not use a name brand oil you like.
_________________________
make the inside of your engine oil cap white.
don't use.

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#2640799 - 05/30/12 09:53 PM Re: What is the best motor oil for me??? [Re: dave1251]
JGW Offline


Registered: 02/23/12
Posts: 223
Loc: New York
Originally Posted By: dave1251
Why is there a recommendations for HM oil? OP is your engine consuming oil or leaking from some where? If not use a name brand oil you like.


That's my question. I've never used HM oil in any vehicle I've had, then again, I don't have any leaks.
_________________________
2002 Jetta TDI. 203k RT
2011 Toyota Matrix 29k
1998 Chevy Tahoe 290k M1
1985 Fiat Spider 34k
1984 Nissan Turbo 300ZX UD

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#2640819 - 05/30/12 10:11 PM Re: What is the best motor oil for me??? [Re: MGUMBY64]
zrxkawboy Offline


Registered: 11/30/04
Posts: 1059
Loc: SD
Do you mean that your driving consists mostly of short trips? How often do you (want to) change your oil? What condition is the engine in? Does it leak or burn oil?
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"Think of all the Ford owners who will someday want an automobile." John Dodge


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#2640844 - 05/30/12 10:41 PM Re: What is the best motor oil for me??? [Re: MGUMBY64]
Zeus103363 Offline


Registered: 02/11/12
Posts: 167
Loc: Louisiana
Originally Posted By: MGUMBY64
Hello everyone, I drive a 1999 Jeep Grand Cherokee Limited with 4.7 liter V8 engine with 150,000 miles on her and I was wondering if you could recommend a motor oil for me? I drive mostly residential but recently I have been putting my foot in it whenever I can since I added a Dual cone cold air intake.( I like the way the engine sounds) I will be changing the exhaust soon.


I think I would go with a top shelf full synthetic. PP is a fav on here and is a little cheaper than M1. My thinkin on that is a high milage engine may have good life left in it but you need the very best in protection so you can add another 150k on the clock. That is if you plan on keeping it. If you have plans to sell or trade up, any top name brand dino would work great. Reguardless of oil choice, always use quality oil filters. Enjoy your ride!
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#2640901 - 05/31/12 12:34 AM Re: What is the best motor oil for me??? [Re: Zeus103363]
dave1251 Offline


Registered: 07/15/05
Posts: 7246
Loc: Maricopa, AZ
Originally Posted By: Zeus103363
Originally Posted By: MGUMBY64
Hello everyone, I drive a 1999 Jeep Grand Cherokee Limited with 4.7 liter V8 engine with 150,000 miles on her and I was wondering if you could recommend a motor oil for me? I drive mostly residential but recently I have been putting my foot in it whenever I can since I added a Dual cone cold air intake.( I like the way the engine sounds) I will be changing the exhaust soon.


I think I would go with a top shelf full synthetic. PP is a fav on here and is a little cheaper than M1. My thinkin on that is a high milage engine may have good life left in it but you need the very best in protection so you can add another 150k on the clock. That is if you plan on keeping it. If you have plans to sell or trade up, any top name brand dino would work great. Reguardless of oil choice, always use quality oil filters. Enjoy your ride!


Define "protection". Does synthetic based oil provide superior slipperiness than conventional? How does synthetic based oils provide best protection? By producing less wear in non-extended drains? How does synthetic provide superior protection in a non DI non-turbo engine?
_________________________
make the inside of your engine oil cap white.
don't use.

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#2640910 - 05/31/12 01:20 AM Re: What is the best motor oil for me??? [Re: MGUMBY64]
dave1251 Offline


Registered: 07/15/05
Posts: 7246
Loc: Maricopa, AZ
I am sorry but once I read someone suggest to someone that the only way you can achieve another 150K of engine life is to use synthetic oil, you sound like a shady tree mechanic or a iffy lube technician trying to up sell a lube. There is no evidence that using a synthetic PCMO provides superior wear protection at factory recommended oil change recommendations in applications that synthetic lubricants are not required or recommended. Quite frankly the Jeep is 13 years old, the sad fact is that the engine could use just about any API certified lubricant and make it another 150K but the transmission, differentials, body, and other parts will probably give out before the engine does. If the cooling, PCV, electrical, and fuel systems are maintained correctly I may have grand children that have children before the engine tires out in this Jeep. But rust or another vehicle is likely to send the Jeep to junkyard before then.

OP how long have you had the Jeep? What oil did you use before?
_________________________
make the inside of your engine oil cap white.
don't use.

Top
#2640943 - 05/31/12 03:07 AM Re: What is the best motor oil for me??? [Re: dave1251]
Garak Offline


Registered: 12/05/09
Posts: 11672
Loc: Regina, Saskatchewan, Canada
Yep. On conventional, the engine will outlast the ability to find parts for the rest of the vehicle. I know - I've been there a few times.
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Hastings LF113
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#2641044 - 05/31/12 08:05 AM Re: What is the best motor oil for me??? [Re: dave1251]
A_Harman Offline


Registered: 10/01/10
Posts: 4330
Loc: Michigan
Originally Posted By: dave1251
Why is there a recommendations for HM oil?


Because the truck has 150k miles on it. I had 150k on my Camaro before trying M1 HM. I put in the HM oil to get the higher anti-wear content of the SL-spec formula, but saw a 25% decrease in oil consumption as well. So even though I had no complaints about leaks or oil consumption, I got an unexpected benefit from HM oil.
_________________________
1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

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#2641094 - 05/31/12 09:27 AM Re: What is the best motor oil for me??? [Re: MGUMBY64]
buster Offline


Registered: 11/16/02
Posts: 29205
Loc: NJ
You don't have to use a HM oil in a high mileage vehicle necessarily. HM oils are usually a bit more robust overall and contain added seal conditioners that may or may not help your engine. It really depends. Can't hurt though.
_________________________
2014 Mazda 3 S GT AT - OE oil
2003 Forester XS 5spd - M1 0w40

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#2641114 - 05/31/12 09:57 AM Re: What is the best motor oil for me??? [Re: MGUMBY64]
HerrStig Offline


Registered: 08/24/11
Posts: 3017
Loc: Boston, MA
I don't think anyone has ever damaged an engine by using a better oil than it required to operate properly. Stuck in traffic on a 95 degree day, or starting on a winter night when it's 15 below, it's nice to have a little cushion. If you change yourself you can save enough to break even. I like Rotella T6 5w40. A benefit, as others have seen with synthetics, is lower oil consumption in high miles engines because synthetic tends not to shear down to a thinner VI with use. I first noticed that in my Briggs L head splash lube genset. Switched to synthetic and noticed a a reduction right away.

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