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Discussion Starter · #1 ·
Background
I have a 2014 JKU Rubicon
Obviously a 3.6 but it’s mated with a manual
I’ve put 25k miles on it in a matter of 4 months and my goal it to make this thing last a million miles
Currently aftermarket parts are
Front and Rear Adams Driveshafts
3.5 inch Rubicon Express lift w/complete set of control arms
Fox 2.0 adjustable shocks
What key components can I add to improve reliability and longevity to make this thing last forever specifically with the motor. Curious about how some guys get creative with their oil filtering and fuel filtering. I’m not looking for performance here just ultimate reliability
Thanks!
 

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At your rate of accumulating miles, you have about 13 years to go before you hit 1,000,000. At an average of 35 mph, that’s over 28,500 hours of driving (or 3.26 years of driving non stop, 24 hours a day).

I’d invest in some rust protection for the frame (fluid film or similar) to help it last the 13 years and some sort of therapy to help you deal with spending over 3 years continuously behind the wheel.
 

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We have a 40mpg car in the family no one want to drive it, wherever we go we go in the jeep.
4428362
:)

As for pentastar - unfortunately it’s not an engine that wrangler deserves - it’s not a bad engine but it’s not designed for off-road or adapted for wrangler (s).
Would be logical to expect on "trail rated" versions to receive some sort of heavy-duty engine with less plastic parts, improved rocker arms, lower operational temp.
 

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I would be more concerned about the body then the motor.
The motor will last only so long and then you can always drop a reman or takeout in its place.
 

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Put a 2.8 Cummins in it
 

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I thought the same thing until last week then another member pointed out that it won't pass emissions everywhere.
That's correct.
Here in the communist-socialist Republic of NY, it's a no go in a JK, or I'd already have one.
 

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There is really not a whole lot you can do to make the 3.6 bullet proof. We don't have at this time an aux oil filter available. There are already 2 fuel filters on the fuel pump, just use top tier fuels and they should not be a problem, fuel pump will probably fail first. Things you can do:

Stay on top of maintenance, what every the schedule says cut it in half.

Oil, oil filter, air filter and cabin air filter - every 5000 miles
Diffs, tranny, transfer case - Every 25000 miles
Brake flush, Power Steering Flush, Coolant - Every 2 years or 25000 miles, which ever comes first
Spark Plugs - Every 50000 miles

Use high quality fluids always.

Known problem areas:

Oil Cooler Assembly
Cam Followers/Rocker Arms

Problem areas for a million mile motor:

Timing Chain
Water Pump
Fuel Pump
Cats

Last but not least will be the electronics. Electronics life span is measured in hours, not miles. The biggy is probably going to be TIPM. I am already planning on ordering a spare to have around the house.
 
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