Recent Topics
'02 Explorer Sport Trac: 302k mile update
by 14Accent. 10/18/18 10:43 PM
BMW 335 Quick Coolant Change
by antonmnster. 10/18/18 09:58 PM
190k miles
by Marco620. 10/18/18 09:56 PM
tire rotation/jack location
by mobilaltima. 10/18/18 09:23 PM
Apparently I'm not allowed to...
by BMWTurboDzl. 10/18/18 08:41 PM
2014 Cruze 2.0, AMSOIL DHD 7k miles 68k total
by Rat407. 10/18/18 08:32 PM
Stabilizer needed for 5-6 month storage?
by Quattro Pete. 10/18/18 08:29 PM
Clearance ST filter cut open
by barkingspider. 10/18/18 07:56 PM
0W20 Required for Jeep Auto Stop/Start
by harbor. 10/18/18 05:42 PM
School buses + Colder Temps = MPG Nosedive
by RayCJ. 10/18/18 05:20 PM
Meguiars Wax
by dslofti. 10/18/18 04:41 PM
New Ariens Snow Blower Advice
by gathermewool. 10/18/18 04:35 PM
Sunsong Power Steering Hoses
by The Critic. 10/18/18 04:10 PM
AC DELCO UPF64R ULTRA GOLD CUT OPEN
by 53' Stude. 10/18/18 03:42 PM
PH 2808 TORN! CUT OPEN
by 53' Stude. 10/18/18 03:36 PM
Newest Members
Whyssosseriouss, TNflash, The74impala, Ryan1122, ston123
66244 Registered Users
Who's Online Now
63 registered members (Anduril, 14Accent, 69GTX, ABomb369, AndyB, 5 invisible), 1,400 guests, and 33 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics292,158
Posts4,875,106
Members66,244
Most Online2,494
Oct 17th, 2018
Donate to BITOG
Previous Thread
Next Thread
Print Thread
Hop To
Page 1 of 2 1 2
1984 jeep 2.5,winter oil #4618124
12/29/17 08:12 PM
12/29/17 08:12 PM
Joined: Sep 2016
Posts: 57
appalachia va
troutfisher Offline OP
troutfisher  Offline OP
Joined: Sep 2016
Posts: 57
appalachia va
Hello,just picked up a 1984 jeep/amc cherokee xj with 2.5 i-4

Runs great,195k on the clock

First thing I did was change the oil,had a driveworks filter on it.Changed it out with a carquest red and 4 quarts of supertech 10w-30 dino,is this a good combo for 15f-30f temps?

Is super tech 10w-30 good for this engine or should I go with a syn blend? Any help would be great

Last edited by troutfisher; 12/29/17 08:12 PM.
Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618127
12/29/17 08:14 PM
12/29/17 08:14 PM
Joined: Sep 2013
Posts: 10,531
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,531
Indiana
ST 10w30 is a good combination for sure.

Is this a toy or a daily driver? Just curious.


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: 1984 jeep 2.5,winter oil [Re: dlundblad] #4618137
12/29/17 08:22 PM
12/29/17 08:22 PM
Joined: Sep 2016
Posts: 57
appalachia va
troutfisher Offline OP
troutfisher  Offline OP
Joined: Sep 2016
Posts: 57
appalachia va
Daily Driver,4x4 is a must where I live

Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618147
12/29/17 08:32 PM
12/29/17 08:32 PM
Joined: Jan 2006
Posts: 1,038
Ruidoso, NM USA
ammolab Offline
ammolab  Offline
Joined: Jan 2006
Posts: 1,038
Ruidoso, NM USA
Our 2.5 runs great on 5W-30 Maxlife.


2009 Honda CR-V
2011 BMW R1200R
2005 Kaw Ninja 250
1994 Jeep Wrangler 2.5L
2016 Chevy SS Sport Sedan
Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618153
12/29/17 08:37 PM
12/29/17 08:37 PM
Joined: Jun 2015
Posts: 20
md, usa
dieselfarmboy Offline
dieselfarmboy  Offline
Joined: Jun 2015
Posts: 20
md, usa
Use to have one of them. 4x4 never worked due to vacuum lines or axle disconnect or transfer case switch. Never ran good was a [censored] of engine part jeep part ford part who knows what else they used. Good luck.

Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618175
12/29/17 08:48 PM
12/29/17 08:48 PM
Joined: Sep 2015
Posts: 5,951
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,951
Kalifornia Kollective
With a 195,000 on it, I'd prolly switch to Maxlife 5W-30 or 10W-40 smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618180
12/29/17 08:53 PM
12/29/17 08:53 PM
Joined: Nov 2008
Posts: 9,107
Phoenix
dishdude Online content
dishdude  Online Content
Joined: Nov 2008
Posts: 9,107
Phoenix
1984 should be the Pontiac 2.5. I'd say you're good with the ST 10w-30.


2018 Challenger SRT
Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618192
12/29/17 09:01 PM
12/29/17 09:01 PM
Joined: Jun 2011
Posts: 1,758
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,758
Crawfordville FL
10w-30 will be fine. Go to 10-40 if you find the engine needs it


2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
Re: 1984 jeep 2.5,winter oil [Re: dishdude] #4618199
12/29/17 09:05 PM
12/29/17 09:05 PM
Joined: Jun 2015
Posts: 20
md, usa
dieselfarmboy Offline
dieselfarmboy  Offline
Joined: Jun 2015
Posts: 20
md, usa
Originally Posted By: dishdude
1984 should be the Pontiac 2.5. I'd say you're good with the ST 10w-30.


Pretty sure it was an AMC engine. They used some ford electronics on it. The carb was a night mare from what I remember. Id be more worried about starting a carbed engine in the cold then what oil is in it. At that mileage if it is true, it has to be TIRED.

Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618217
12/29/17 09:16 PM
12/29/17 09:16 PM
Joined: Sep 2016
Posts: 57
appalachia va
troutfisher Offline OP
troutfisher  Offline OP
Joined: Sep 2016
Posts: 57
appalachia va
This was a old park service jeep,so it had pretty good maintenance,the carb is definitely newer

engine runs perfect even in the coldest temps,gonna stick with the 10w-30 might try mobile super,with a wix for the long term

Last edited by troutfisher; 12/29/17 09:16 PM.
Re: 1984 jeep 2.5,winter oil [Re: dieselfarmboy] #4618220
12/29/17 09:20 PM
12/29/17 09:20 PM
Joined: Nov 2008
Posts: 9,107
Phoenix
dishdude Online content
dishdude  Online Content
Joined: Nov 2008
Posts: 9,107
Phoenix
Originally Posted By: dieselfarmboy
Originally Posted By: dishdude
1984 should be the Pontiac 2.5. I'd say you're good with the ST 10w-30.


Pretty sure it was an AMC engine. They used some ford electronics on it. The carb was a night mare from what I remember. Id be more worried about starting a carbed engine in the cold then what oil is in it. At that mileage if it is true, it has to be TIRED.


You're right.


2018 Challenger SRT
Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618223
12/29/17 09:22 PM
12/29/17 09:22 PM
Joined: Sep 2013
Posts: 10,531
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,531
Indiana
Originally Posted By: troutfisher
Daily Driver,4x4 is a must where I live


Basically the 4.0's little brother then?

I'd run a 10 or 5w40 personally.


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: 1984 jeep 2.5,winter oil [Re: dieselfarmboy] #4618230
12/29/17 09:30 PM
12/29/17 09:30 PM
Joined: Sep 2004
Posts: 7,604
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,604
Marshfield , MA
Originally Posted By: dieselfarmboy
Use to have one of them. 4x4 never worked due to vacuum lines or axle disconnect or transfer case switch. Never ran good was a [censored] of engine part jeep part ford part who knows what else they used. Good luck.
I ha 2 grand wags with the vacuum switched front ends. All kinds of of horror stories about trying a cable operation, etc. One afternoon, I fixed the problem with 5' of vacuum hose. AMC, in its thriftiness, used a few pieces of steel tubing run hard and tight under the left exhaust maniifold. Thin steel. It rotted out. Routing the replacement hose cable tied to the fender fixed it for good. Cost <5$ The Grand Wag had about 30 feet of vacuum hose under the hood. The potential for leaks was massive as the cars aged.


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: 1984 jeep 2.5,winter oil [Re: andyd] #4618247
12/29/17 09:45 PM
12/29/17 09:45 PM
Joined: Jun 2015
Posts: 20
md, usa
dieselfarmboy Offline
dieselfarmboy  Offline
Joined: Jun 2015
Posts: 20
md, usa
Originally Posted By: andyd
Originally Posted By: dieselfarmboy
Use to have one of them. 4x4 never worked due to vacuum lines or axle disconnect or transfer case switch. Never ran good was a [censored] of engine part jeep part ford part who knows what else they used. Good luck.
I ha 2 grand wags with the vacuum switched front ends. All kinds of of horror stories about trying a cable operation, etc. One afternoon, I fixed the problem with 5' of vacuum hose. AMC, in its thriftiness, used a few pieces of steel tubing run hard and tight under the left exhaust maniifold. Thin steel. It rotted out. Routing the replacement hose cable tied to the fender fixed it for good. Cost <5$ The Grand Wag had about 30 feet of vacuum hose under the hood. The potential for leaks was massive as the cars aged.


If I had to deal with one again id see if I could swap a newer axle under it. My current Grand Cherokees front axle spins all the time and it dont seem to affect fuel mileage that much.

Re: 1984 jeep 2.5,winter oil [Re: troutfisher] #4618304
12/29/17 10:48 PM
12/29/17 10:48 PM
Joined: Apr 2016
Posts: 1,185
Campbellsville, KY
Alex_V Offline
Alex_V  Offline
Joined: Apr 2016
Posts: 1,185
Campbellsville, KY
The 2.5 is tough. Doesn't get a lot of credit because most of the vehicles it was put in needed 30 more horsepower than it could give, but they'll go a long time and I've personally gotten 24 MPG with one in an XJ.

With that many miles, in warmer weather I'd bump up to a HM or syn blend, or 10w40, but 10w30 is one of the best weights for your engine even if it's substantially colder than that.


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
Page 1 of 2 1 2

BOB IS THE OIL GUY® Powered by UBB.threads™