what weight oil
CF Veteran
Joined: May 2011
Posts: 1,381
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From: EAFB, SD
Year: 1994
Model: Cherokee
Engine: 4.0 HO
Originally Posted by 1996XJSport
Everyone I've known who used Quaker State or Pennzoil have had their engines fail on them at early mileage (meaning between 90k and 110k). Your buddy must have a 350s or 305s, they're great engines. He's pretty lucky too lol.
Personally I'd never run the stuff, but it's personal preference I suppose.
Sent by my pet chicken
CF Veteran
Joined: Jun 2011
Posts: 1,023
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From: Southern Idaho
Year: 1994
Model: Cherokee
Engine: 4.0 L/242 CID I-6 High Output MFI
, but it hasn't come on yet. No problems yet.
CF Veteran
Joined: Sep 2010
Posts: 1,992
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From: West Bloomfield,MI
Year: 1996
Model: Cherokee
Engine: 4.0L, CAI, Edelbrock Breather, Optima Yellowtop
Every 305 I've seen has ran fine and has had plenty of miles racked up on them.
CF Veteran
Joined: May 2011
Posts: 1,381
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From: EAFB, SD
Year: 1994
Model: Cherokee
Engine: 4.0 HO
the 305 is a POS motor hence why everyone does a swap from the 305 to a 350. every single one i have ever worked on burned oil and smoked regardless what was done to the motor. one of them was the best of the 305s (L03) in a 95 pickup with a huge 30K on it and dealership oil changes and maint. it burnt oil and made less power than the 4.0L chero's do all while getting worse gas mileage.
CF Veteran
Joined: Sep 2010
Posts: 1,992
Likes: 0
From: West Bloomfield,MI
Year: 1996
Model: Cherokee
Engine: 4.0L, CAI, Edelbrock Breather, Optima Yellowtop
lol that means nothing to me all the "service techs" i know, know how to "change parts" i dont know you so i can't judge you on your car knowledge.
the 305 is a POS motor hence why everyone does a swap from the 305 to a 350. every single one i have ever worked on burned oil and smoked regardless what was done to the motor. one of them was the best of the 305s (L03) in a 95 pickup with a huge 30K on it and dealership oil changes and maint. it burnt oil and made less power than the 4.0L chero's do all while getting worse gas mileage.
the 305 is a POS motor hence why everyone does a swap from the 305 to a 350. every single one i have ever worked on burned oil and smoked regardless what was done to the motor. one of them was the best of the 305s (L03) in a 95 pickup with a huge 30K on it and dealership oil changes and maint. it burnt oil and made less power than the 4.0L chero's do all while getting worse gas mileage.
I'm a service tech for right now, it's just my starting position at the dealership really. If you want to judge my car knowledge, check out my XJ. I built the entire thing myself, and it's still a never ending project.
305s don't make tons of power, but they last a longggg time lol.
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Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
Seasoned Member
Joined: Feb 2011
Posts: 424
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From: Memphis,TN area
Year: 1998
Model: Cherokee
Engine: ERH 4.0L 16 Power Tech
Member
Joined: Dec 2010
Posts: 224
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From: South Georgia
Year: 1998
Model: Cherokee
Engine: 4.0
i use good ol valvoline 10w 30 and 10w 40 in my jeep. my buddy is a sales man for schaeffers and they do test with there oils and all kinds of sh**. pretty neat stuff. i use it (schaeffers) in my jet ski it saved gas and ran better. schaeffers may be more expensive but it is for a good reason. its freaking great oil. schaeffers and valvoline are my oils makes my engines last and run great.
CF Veteran
Joined: Jun 2011
Posts: 2,858
Likes: 1
From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by dukie564
Last edited by Slick761; Jul 19, 2011 at 02:30 AM.