For those that think viscosity is the only thing that matters in oil selection.
10-10-2010, 04:23 PM
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Year: 90
Model: Cherokee
Engine: 4.0
For those that think viscosity is the only thing that matters in oil selection.
This is the top end of the 4.0l in a 92 XJ. The owner's defense was that she was using the correct viscosity.... It is a bit hard to tell, but that oil is the consistency of pudding when it is not quite set-up.
10-10-2010, 04:32 PM
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Year: 2000 @ 1994 givin away
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Hey looks like they forgot to change it ,or they kept changing brands. Thats also what happens when you by whats on sale all the time (differant brands)
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10-10-2010, 07:30 PM
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Year: 1998
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Engine: 4.0L HO
One of the reasons I bid on our XJ at auction. Neglect (as in above pic), is pretty easy to check for. Good maintenance is easy to spot also.
Last edited by djb383; 10-10-2010 at 07:33 PM.
10-10-2010, 07:31 PM
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Never heard of using different brands doing THAT to an engine. That is someone who changes it every 3 YEARS... Using different brands is better than 30K oil change increments.
10-10-2010, 07:47 PM
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10-10-2010, 07:53 PM
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Year: 1998
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Had a neighbor that was a chemical engineer (PhD) with Exxon/Mobil (now) for over 40 years. FWIW - his recommendation was "rotate between the 4-5 top/major oil brands when changing oil/filter - stay with the same viscosity but change/rotate brands - the next brand will clean/remove the previous brands detergents left behind when changing oil". Again, FWIW but from a very smart/educated man, may he RIP.
10-10-2010, 08:09 PM
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Year: 2000 @ 1994 givin away
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Engine: 4.0
Had a neighbor that was a chemical engineer (PhD) with Exxon/Mobil (now) for over 40 years. FWIW - his recommendation was "rotate between the 4-5 top/major oil brands when changing oil/filter - stay with the same viscosity but change/rotate brands - the next brand will clean/remove the previous brands detergents left behind when changing oil". Again, FWIW but from a very smart/educated man, may he RIP.
10-10-2010, 08:45 PM
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Year: 1996
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So what are the top 5 brands out on the market. if i ask 5 different peps, im sure i would get 5 diff answers, and im talking mechanics, parts pro's, engineers, and profesional racers.
10-10-2010, 09:18 PM
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10-10-2010, 09:47 PM
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Year: 1998
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Guess the point got missed........it was that using different brands wouldn't cause problems and test results proved it and also kept engines clean. Most everybody can name 5 major brands of motor oil, probably twice that.