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Unread 04-22-2002, 07:10 PM   #1
jugger
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maintaining high mile cars

i have a 89 cherokee with a inline 6, i recently added sea foam to the engine and replaced the air filter. This car has 150,000 miles on it and i want to make sure its running as efficient as i can so it lasts, is there anything else i should watch or replace soon? would it be good to replace the spark plugs?

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Unread 04-23-2002, 06:57 AM   #2
flashJP
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ive got an 89 YJ with 114K...and heres a few general things i did to make sure the engine lasts..
spark plugs
spark plug wires
distributor cap & rotor
air, oil, & fuel filter
check the power steering\ brake fluid
replace any hoses that look shot
...then after a bit of work...go out and buy an engine heavy duty degreaser...they work great to clean the engine...just spray all over..let sit, then hose off...by removing all the grime thats prob on your engine, you make the whole setup run cleaner and look better...my engine was cover with crap because i had a couple leaky hoses...but after the engine degreaser, it looks 10X better..
just some ideas
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Unread 04-23-2002, 08:10 AM   #3
mikeythefireman
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Along with the engine looking better it will help you spot any leaks or probs you might have. Always better to discover a prob early. Get religious with the tune ups. Do them as complete as possible too. Good Luck and have fun!
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Unread 04-23-2002, 10:35 AM   #4
4wheeler4CJ
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Also, as long as you're not in a super-cold climate, i would personally recommend running a heavier oil weight.

If you have seen the debates/discussions in the past, I'm sure you have seen my opinions.

I run 20W-50 in any engine in any vehicle I have or currently do own, and they run much better/quieter, and ALWAYS make it well over 200,000 miles. Up until 100,000 I run 10W-40. I don't believe in 5W or 0W oils, nor do I accept the added benefits to synthetic (with 5 times the cost, and same change intervals).

The last vehicle I sold was a 1989 Grand Prix w/3.1L V6, I had been running 20W-50 in it since 100,000, and sold it at 217,000 to a guy in Michigan (I am in Rhode Island). He was a used car dealer, and bought it for $550 over book value, because of the excellent running condition. It didn't leak a drop and had the power as if it was still brand new. The guy called me when he got back to Michigan, driving it all the way, (1200 miles later!), and said how happy he was and couldn't believe how well it ran.

Yet another successful high-mileage vehicle passed on! (Pat myself on the back, don't mind if I do! )

You'll get plenty of life out of that vehicle! Good Luck!
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Unread 04-23-2002, 03:13 PM   #5
johny1i
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I agree with the 20W-50 oil, the added thickness will help keep it in the heads overnight, etc. and reduce (if not eliminate) valves rattling for that first few seconds in the morning (mine has a tendency to do that). Plus, there may be some truth to the theory that substantial engine wear occurs in that first seconds after starting it, before the oil pump can get the oil out of the pan and into the upper end. I'm just over 130,000 and it doesn't burn a drop between changes.
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Unread 04-27-2002, 06:58 PM   #6
AKULARED
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</font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by flashJP:
<strong>
...then after a bit of work...go out and buy an engine heavy duty degreaser...they work great to clean the engine...just spray all over..let sit, then hose off...by removing all the grime thats prob on your engine, you make the whole setup run cleaner and look better...my engine was cover with crap because i had a couple leaky hoses...but after the engine degreaser, it looks 10X better..
just some ideas</strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">One thing to keep in mind though is that the de-greaser will continue to eat away at your hoses wires and such.. no matter how much you rinse off.. i've seen first hand, my advise use sparingly
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Unread 04-28-2002, 10:16 AM   #7
4wheeler4CJ
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I have found you actually don't need degreaser. Go to a car wash and use the manual high pressure wash station.

All I do is use "High Pressure Soap" first and spray everything really well as close as you need to blast everything off (watching out for ignition components, intake, etc. of course), then run the "High Pressure Rinse" after to wash off the soap.

That's all you need to remove any grime, seriously, and it will not harm anything. If you get moisture in your cap, wipe it out with a dry paper towel. I have had great luck with even the grimiest of engines! <img border="0" title="" alt="[Wink]" src="wink.gif" />
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Unread 04-28-2002, 02:20 PM   #8
Az Adrian
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Make sure you flush and clean the radiator too. Get the right mixture of H2O and Coolant for your temperature. Will keep the engine running at the right temp. Later. Adrian
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Unread 04-29-2002, 10:10 AM   #9
4wheeler4CJ
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</font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by Az Adrian:
<strong>Make sure you flush and clean the radiator too. Get the right mixture of H2O and Coolant for your temperature. Will keep the engine running at the right temp. Later. Adrian</strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">The right mix is simply 50/50 for any vehicle. <img border="0" title="" alt="[Wink]" src="wink.gif" />
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