Rotella: The world's first ever combined hair oil, foot ointment, and salad dressing
Not sure what Cummins is in my uncles rig now, but when I was a kid back in the early 80s he and my Dad had one with the 3406 Cat.
02-27-2014, 09:31 PM
#153
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Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,876
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
02-28-2014, 10:09 AM
#157
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Join Date: Dec 2012
Location: York, PA
Posts: 4,169
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Year: 1998
Model: Cherokee
Engine: 4.0
A rare shot of the Canadian Bigfoot XJ. After hunting the Canuckian wilderness for weeks, I finally found it. It is an elusive and mysterious little mall crawler. 
03-03-2014, 10:42 AM
#164
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Join Date: Aug 2013
Location: Regina, Saskatchewan
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Year: 1999
Model: Cherokee
Engine: 4.0 HO
I live in Saskatchewan, Canada. We routinely see winters that can be as cold as -40C, -65C with the windchill, and summers that can be as high as 40C. (We had -68C [windchill] two days ago, believe it or not. It's days like that where you find every excuse to sleep in and hope that God doesn't damn you to doing something in the freezing hell outside.) I have a 99 XJ Classic, and she has 260,000km on the original motor right now. I've been running Mobil 1 Synthetic 5w30 for as long as I've had the Jeep, OCI of 4 months/6000km. She starts up every time I can't plug her in, and runs well enough for her age. This summer, I'm planning a complete engine rebuild from top to bottom, and I want to start her off right with this new motor. After reading your article, (which I have to say was amazing. Thank you for putting all that together!) I'm pretty convinced that T6 5w40 is a great oil for mild climates, but what about my extreme region? Our weather goes all over the place, and I want Sparta to be happy and healthy all year round. Would you still recommend T6 5w40 for my climate, or should I continue using Mobil 1 5w30 in this new motor?
Thanks so much! As a mechanic's apprentice, I can't say enough how much I enjoy articles like this that are informative and useful.
Thanks so much! As a mechanic's apprentice, I can't say enough how much I enjoy articles like this that are informative and useful.
03-03-2014, 10:49 AM
#165
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Join Date: May 2013
Location: Washington, MO
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Year: 2000
Model: Cherokee
Engine: 4.0
Thanks for the writeup salad.
I have a rebuilt engine with about 1500 miles. Would you say its a little too early for the T6? I run 10w30 Valvoline conventional right now.
Also do you still recommend the T6 in a climate that will experience 5º-100º?
I have a rebuilt engine with about 1500 miles. Would you say its a little too early for the T6? I run 10w30 Valvoline conventional right now.
Also do you still recommend the T6 in a climate that will experience 5º-100º?