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  1. 8

    2003 Jeep 4.0 burning oil

    Ok, long story short,...2003 Jeep Grand Cherokee with currently 94,981 miles, burnt 1 quart of Castrol EDGE 10w-30 over the last 1481 miles. Oil change performed at 93,500 miles with 6 quarts EDGE 10w-30 and FRAM Ultra PH8(over size filter). Previous oil change at 90,000 miles was exactly same...
  2. 8

    What Oil Are You?

    Being a gear head, always thinking about engines, transmissions, transfer cases, Diffs, starters, alternators, injectors, etc, etc and seeing them work, or Not work in my head a good deal of the time, I sometimes relate to them. I used to relate to the Toyota 20R, dependable, tough, good power...
  3. 8

    2003 Jeep 4.0- GC or EDGE 10w-30

    What would You use in a 2003 Jeep Grand Cherokee 4.0 with 93,500 miles? 6 quarts of GC(2007 thru 2012 era) or Castrol EDGE 10w-30? Oil filter that will be used is a FRAM Ultra. Will remain in sump until spring, with winter temps occasionaly dipping to 0 degrees. Current fill is Castrol EDGE...
  4. 8

    2003 Jeep Grand Cherokee rear main drip

    Oil Suggestions for a 2003 Jeep Grand Cherokee 4.0 with 93,250 miles that has a small rear main leak. Current fill is Castrol EDGE 10w-30 with a FRAM
  5. 8

    Intake Runner Surface

    I Thought I had finished Porting and Yes Polishing the 92 Jeep 4.0 7120 cylinder head that Im putting on my 2000 Jeep Cherokees 4.0 reBuild, when a couple of AutoTech teachers told me the intake runners are too smooth, they should be roughened up, so the fuel will atomize with the air correctly...
  6. 8

    Briggs/Stratton 12.5HP Racing oil?

    Delo 400 Diesel 30 CF/CF2? Conoco HD30 CF/CF2? Turning a 1991 Craftsman 6 speed riding lawn mower into a racer. She has a Well Used 12.5HP Briggs/Stratton that runs like a Champ, will be ran at 100% throttle about 10% of time, mostly 75% throttle(around 4000RPM)(500 more than stock wide open)...
  7. 8

    Half&Half 10w-30 and 10w-40 FrankenBrew 10w-35

    Would 3 quarts Chevron Supreme 10w-30 and 3 quarts Chevron Supreme 10w-40 for a Chevron Supreme 10w-35 be considered a "FrankenBrew"? I would like to do this for two of my Jeep 4.0s and give them Oversize Orange PH8 Cans.
  8. 8

    1993 Chevy 350 German Castrol or Ultra 10w-30?

    Installing New front calipers and doing a oil change on Dads 1993 Chevy 1500 with the TBI350 that has 120,??? Hard Miles. What I have in my stash that Im willing to use Today(Changes constantly) is 2012 German Castrol or Pennzoil ULTRA 10w-30. I Know how well German Castrol works. It works...
  9. 8

    Pentosin Motor Oils

    I have been really wanting to try a German Made motor oil besides German Castrol. LiquiMoly 0w-30 or 0w-40 Fully Synthetic were my choices, but now Ive found GoodOl Pentosin for Good prices($27.40 for 5 Liters) at GermanAutoParts.com,..the Vehicles it will be going
  10. 8

    Jeep 4.0-Mobil 1 HIGH Mileage or Pennzoil ULTRA

    Trying to decide between Mobil 1 HIGH Mileage 10w-30 or Pennzoil ULTRA 10w-30 for my 1996 Jeep Cherokees 4.0 with 249,??? miles. Her 4.0 dosent loose, burn or leak over a quart every 7,000 miles. AutoZone here in Wenatchee WA currently has 5 quarts Pennzoil ULTRA and a FRAM tough Guard oil...
  11. 8

    2001 Jeep Cherokee Defy or Maxlife?

    Need help choosing a High Mileage oil for parents 2001 Jeep Cherokees 121,000 mile 4.0, QuakerState Defy 10w-30 or Valvoline Maxlife 10w-30. Future driving habits will be lots of short trips around town with occasional, Highway driving, from now until springtime next year. 4.0 dosent burn any...
  12. 8

    SuperTech 5w-20 in a B&S Lawnmower engine

    I recently got a Craftsman pressure washer with a seized B&S 6.75ftlb engine for free. After using WD-40 to Un-Seize the motor, it has been running like a champ. I put the engine on my Craftsman walk behind mower as its 5Hp B&S is worn out. Has been running like a champ for a month and a half...
  13. 8

    OReillys 10w-30 Full Synthetic for Jeep 4.0

    I will drain the old oil in my 1996 White Jeep Cherokees 249,575 mile 4.0 today, take off the old oil filter(SuperTech ST16), spin on a New SuperTech ST8(OverSize for a 4.0)and Refill with 5 Quarts OReillys SN 10w-30 Full Synthetic. Problem is I Need 1 more quart to fill her 6 quart sump. I have...
  14. 8

    Mobile Oil & Lube Service

    So, I lost my job as a Residential Plumber two weeks ago. The outlook of finding another job any time soon is not so good. I do enjoy doing oil changes and basic vehicle maintenance for other people, and I usually have to travel to them, vs them coming to me to do it. So, I came up with the idea...
  15. 8

    Custom Blended Break-In Oil

    Have any of you ever Blended Break-In oil for freshly built engines? I finshed building my 99 Jeep Cherokees 4.0 Inline 6, and ran her, Wore her in with a Custon Blended Break-In oil I came up with. I mixed 4 quarts Accel 30 Non-Detergent, 5 quarts 2003 vintage Havoline 10w-30, 5.28 quarts of...
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