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Old 06-08-2013, 07:33 PM   #1
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Will my little 4 banger handle expressway speeds ?

I will be going on a 5 hour trip next weekend, 4 hours will be on the expressway & I would like to do the speed limit of 70MPH. The little squirrels are really screaming at 70 the tach is a touch over 3,000 rpm.

Actually it don't sound too bad as I took it on a quick test run today, but I don't think a jeep was built for the expressway. It is an automatic so that probably adds a few extra RPM's as I only have 3 gears.

Will my jeep survive 4 hours @ 70 MPH ?

Thanks,
Dan

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Old 06-08-2013, 08:01 PM   #2
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Yep no issue.

I have cruised many times at 3-3300 for 2hours or so up the sierras and doesnt bother it a bit.

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Old 06-08-2013, 10:48 PM   #3
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I can pretty easily cruise at 75 to 80mph. Of course going up hill slows it down a little, but I have had no issues at all and I commute on the freeway every day.
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Old 06-08-2013, 10:55 PM   #4
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Originally Posted by Dan-D View Post
I will be going on a 5 hour trip next weekend, 4 hours will be on the expressway & I would like to do the speed limit of 70MPH. The little squirrels are really screaming at 70 the tach is a touch over 3,000 rpm.

Actually it don't sound too bad as I took it on a quick test run today, but I don't think a jeep was built for the expressway. It is an automatic so that probably adds a few extra RPM's as I only have 3 gears.

Will my jeep survive 4 hours @ 70 MPH ?

Thanks,
Dan
3k and a wee bit above is fine.
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Old 06-08-2013, 11:03 PM   #5
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Lol, I don't know about your jeeps, but unless I have the top down, or all the windows out, my YJ is like trying to push over a wall at 70mph..
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Old 06-09-2013, 12:31 AM   #6
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Originally Posted by indirocz28 View Post
Lol, I don't know about your jeeps, but unless I have the top down, or all the windows out, my YJ is like trying to push over a wall at 70mph..
Plus that lovely sound of the windows and top bouncing and popping.

Hope you got a hardtop our really tight soft top.
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Old 06-09-2013, 02:12 AM   #7
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I did a 2200 mile road last year with the top down the whole way, doing 2-3 hour legs as I went 65-75 the entire trip. If I had a bigger fuel tank I probably could have done longer bits but I never had any issue keeping up with traffic. Then again my 4 squirrels are mated to a 5-speed stick but I doubt it'll make a major difference, as my engine also spinning in the 3000 rpm range.

It's not built for the expressway so like I was, you'll be passed by faster traffic in the leftmost lane (being passed by two Priuses, a Kia Rio, and a POS 90s Ford Tempo was rather sobering for me). Just plan ahead, bring many hours of good music and figure and on a relaxing, languorous journey.

My Wrangler was running great before but I took the precaution of doing an oil change and tune-up before the road trip and other than a flat tire, she gave me no issues. You'll be fine.
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Old 06-09-2013, 08:15 AM   #8
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Glad to read it's doable ! I do have a hardtop, so I have non of the soft top concerns.

I live in rural mid Michigan & to go anywhere it's an hour drive to the nearest expressway & then usually hours after that to get to where I want to go. Next year I want to go to the Mesick Michigan jeep festiville & that will be another 4 hour drive away.

I know 3,000 RPM is nothing for mud boggin or short blasts, but I didn't know about 3 hours at a time, things like overheating (engine or transmission) could come into play. I just did an oil change as I have only had the Jeep for 6 weeks. The previous owner took excellent care of it as they only used mobil 1 oils, changed oil every 3000 miles. The trans only has about 20,000 miles on a new unit from Jeep, it also has a new water pump. I have no leaks or any other visual (or audible) concerns so it sounds like I'm good to go !

I realize I'm gonna get passed, lol, I will have a pretty laid back attitude when making the trip. It's not about how fast I get there, it will be about enjoying the journey !

Thanks for the advice everyone !
Dan
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Old 06-09-2013, 08:35 AM   #9
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3000 is nowhere near the redline. You'll be fine. My biggest concern for long road trips is that droning road and wind noise, it gets old fast, but your hard top will cut that down a little bit.

Pretty much all cars nowadays are built to handle sustained 70mph driving, even those tiny little geo metros. Not sure what engines they had but it couldn't be bigger or more powerfull than your 4 cyl.
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Old 06-09-2013, 09:38 AM   #10
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3000 is nowhere near the redline. You'll be fine. My biggest concern for long road trips is that droning road and wind noise, it gets old fast, but your hard top will cut that down a little bit.

Pretty much all cars nowadays are built to handle sustained 70mph driving, even those tiny little geo metros. Not sure what engines they had but it couldn't be bigger or more powerfull than your 4 cyl.
Play music.
I may sound odd but I don't mind the droning of my engine or the hum of my tires. To me it sounds like freedom.
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Old 06-09-2013, 11:58 AM   #11
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3000rpm actual is easier than idle. You have more oil pumping, more water pumping and you're going to have more air flowing.
You'll still be I'm the lower portion of your power band...
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Old 06-09-2013, 03:30 PM   #12
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You'll be fine. I just got back from a 2200 mile trek to and from Moab two days ago. Four cylinder with a manual on 30" tires. I stayed around 75-80 most of the way. No problems, other than it running slightly hotter in the 100 degree temperatures of southern Utah.

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