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Should I switch to 10w-30? #4436976
06/20/17 06:03 PM
06/20/17 06:03 PM
Joined: Jun 2017
Posts: 4
Florida
EOD89D Offline OP
EOD89D  Offline OP
Joined: Jun 2017
Posts: 4
Florida
My engine is burning oil after 200k miles. See number 6 for details. Also my father seems to think I should switch to 10w-30 and use lucus oil stabilizer. First off if my owners manual says 5w-20 (I currently use pennzoil high milage 5w-20) is it safe to use 10w-30? Also is that lucas stabilizer even necessary? Thank you. Below are my vehicle details.

1. What kind of vehicle you have-2009 jeep grand cherokee 3.7L 4x4
2. What your owner’s manual says - says to use SAE 5w-20 API certified engine oil
3. Where you live- northwest florida
4. How you drive (easy? hard? fast? slow?)easy and slow. Only drive fast when making a u turn through highway emergency vehicle median haha.
5. What your daily drive is like (short trips? long trips? city? highway?)first 0-60k miles I have no idea(I try not to buy new vehicles). from 60-160k miles it was mostly all highway miles. From 160k-205k miles it was even city/highway.
6. Whether your car has any known problems (leaks, oil consumption etc)- at around 200k miles started to use/burn/consume/magic alot of oil. Basically it would read at the top of the safe line on dip stick after an oil change and 2 months after oil would only show up at the tip of the dip stick...nowhere near the safe line (I can kick myself). Also I have funny noise humming noise comming from ujoint or front differential. Pretty sure it's ujoint.

Re: Should I switch to 10w-30? [Re: EOD89D] #4436978
06/20/17 06:06 PM
06/20/17 06:06 PM
Joined: Oct 2004
Posts: 7,984
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 7,984
Cincinnati, OH, USA
Use HM 5W20, 5W30, or 10W30 (Maxlife is a good one),try a new PCV valve, check your front axle gear oil & see if it is low or burnt, might want to check wheel bearings too.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: Should I switch to 10w-30? [Re: EOD89D] #4436987
06/20/17 06:16 PM
06/20/17 06:16 PM
Joined: Oct 2015
Posts: 475
MN
WillsYoda Offline
WillsYoda  Offline
Joined: Oct 2015
Posts: 475
MN
Maxlife 10w30

Re: Should I switch to 10w-30? [Re: EOD89D] #4436989
06/20/17 06:19 PM
06/20/17 06:19 PM
Joined: Sep 2015
Posts: 2,260
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,260
Malaysia
It's safe to up the grade to 10W30/xW40.

Re: Should I switch to 10w-30? [Re: EOD89D] #4436991
06/20/17 06:21 PM
06/20/17 06:21 PM
Joined: Jun 2017
Posts: 4
Florida
EOD89D Offline OP
EOD89D  Offline OP
Joined: Jun 2017
Posts: 4
Florida
Thanks bull winkle.Replaced pcv valve recently. I ripped the hose to shreds getting it off so I put a different hose on there with a slightly sharper bend. Still seemed to be big enough in diameter to not effect gas flow. Could that be a problem? Also as far as the funny humming noise I know for a fact it's not wheel bearings. I recently replaced the front diff Fluid too and filled it. But I will check again. Took it to 4 mechanics and 2 said it's differential and 2 said it's u-joint/ drive shaft. It humms loud only when I touch the accelerator at 43mph-50mph and 60-73mph and immediately stops if I let off the accelerator. Thanks again bull winkle

Re: Should I switch to 10w-30? [Re: EOD89D] #4436993
06/20/17 06:24 PM
06/20/17 06:24 PM
Joined: Jun 2017
Posts: 4
Florida
EOD89D Offline OP
EOD89D  Offline OP
Joined: Jun 2017
Posts: 4
Florida
Thanks wills and zeng. I will upgrade then eek

Re: Should I switch to 10w-30? [Re: EOD89D] #4437083
06/20/17 08:31 PM
06/20/17 08:31 PM
Joined: Dec 2016
Posts: 279
Sav ga
NStuart Offline
NStuart  Offline
Joined: Dec 2016
Posts: 279
Sav ga
Remove front dshaft and road test


Detroit14l 1m75k mi bp schaffer9k 30k oil
96 ram 5.9 gas 80k built tranny 5k m1
85 cj7 4.2 performance build. Schaeffer 9000
08 cbr600rr graffiti. T6
08 husky sm610 t6
Re: Should I switch to 10w-30? [Re: EOD89D] #4437093
06/20/17 08:39 PM
06/20/17 08:39 PM
Joined: Jul 2016
Posts: 1,482
Jacksonville, FL
FlyNavyP3 Offline
FlyNavyP3  Offline
Joined: Jul 2016
Posts: 1,482
Jacksonville, FL
Skip the Lucas addative for sure. No harm in trying a 10w30, my personal choice would be Valvoline MaxLife. Drivetrain hum that subsidies with throttle position is more likely the rear differential unless its full time 4wd which I dont think yours is.

Last edited by FlyNavyP3; 06/20/17 08:54 PM.

Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander
Re: Should I switch to 10w-30? [Re: EOD89D] #4437122
06/20/17 09:19 PM
06/20/17 09:19 PM
Joined: Apr 2016
Posts: 1,185
Campbellsville, KY
Alex_V Offline
Alex_V  Offline
Joined: Apr 2016
Posts: 1,185
Campbellsville, KY
Another vote that 10w30 without any of that thick junk added in is fine.


I like Chevy and Valvoline.

'13 Cruze, 1.4T, 113K
'85 GMC C3500, 454, 130K
'82 Mercedes 300CD, OM617 turbo, 169K
'67 Suburban, 350, 331K
Re: Should I switch to 10w-30? [Re: EOD89D] #4437185
06/20/17 10:25 PM
06/20/17 10:25 PM
Joined: Nov 2011
Posts: 4,857
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,857
MTL, CANADA
How much oil brings it from tip of dipstick to full line? Would be good if you knew how much. If its 2 quarts per 10k mile OCI it isnt that bad. Im sure you can go to 10w30 HM and see if it helps. I wouldnt touch Lucas unless even the thickest oil doesnt slow the leak. I would switch to conventional HM and go thicker. Will at least be cheaper to top up.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Should I switch to 10w-30? [Re: EOD89D] #4437250
06/21/17 04:01 AM
06/21/17 04:01 AM
Joined: Jul 2015
Posts: 4,625
Down Under
SR5 Offline
SR5  Offline
Joined: Jul 2015
Posts: 4,625
Down Under
Yes: 10w30 HM
No: lucus oil stabilizer


Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154
Re: Should I switch to 10w-30? [Re: NStuart] #4437374
06/21/17 08:26 AM
06/21/17 08:26 AM
Joined: Apr 2010
Posts: 4,399
Storrs, Connecticut
jeepman3071 Offline
jeepman3071  Offline
Joined: Apr 2010
Posts: 4,399
Storrs, Connecticut
Originally Posted By: NStuart
Remove front dshaft and road test


+1

Remove front driveshaft (should be only a few bolts) and test drive to see if the noise remains. If it does, likely a wheel bearing. If noise is gone, replace the u-joint.

10w30 high mileage should be fine in that engine, don't use Lucas it does nothing but make the oil thicker.


2000 Jeep Cherokee 4.0L (181k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (33k) - Castrol Edge Euro 0w40, MANN HU816X
Re: Should I switch to 10w-30? [Re: EOD89D] #4437885
06/21/17 06:48 PM
06/21/17 06:48 PM
Joined: Jun 2017
Posts: 4
Florida
EOD89D Offline OP
EOD89D  Offline OP
Joined: Jun 2017
Posts: 4
Florida
Thank you all for the advice. I'm actually going to try the remove front drive shaft suggestion. And I will be switching to 10w-30. Thank you all.


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