Jeep JL 3.6 oil

jeeeep said:

I'm pretty sure the engineers designed them to take hours just to get the shit out of the way to do the one hour repair job

Click to expand...

First thing that came to mind was the PCV valve on the back of the passenger head.

On a positive note/trend, some manufacturers are putting items that more likely to fail and need replacement in more accessible locations. Toyota comes to mind on a couple models/engines where they have moved items making for quick replacement if needed in the future.

SamJL61 said:

I own a 2020 Jeep JL with the 3.6. I see in some YouTube videos, some people recommend changing the viscosity of the engine oil to 5W30. What is the general consensus on doing this for better engine wear? At present I only have 15,000 miles on it.

Click to expand...

As a guy that works in the refined oil and lubrication industry, please take this with the utmost respect. And I am not trying to act like a know it all here.


DO NOT CHANGE THE VISCOSITY OF THE OIL YOU ARE PUTTING IN YOUR ENGINE.

That recommendation is set by the manufacturer for good reason and because it is the viscosity needed to lubricate your engine properly.

It is the proper lubrication for your engine for specific specs and operations:

gear clearances,
pressure targets,
hydraulic lifters and cam phases,
piston lubrication,
piston cooling jets,
fuel economy,

and much more when it comes to your engine.

Modern engines are engineered around very specific oil flow, pressure, and temperature characteristics. Deviating from the specified viscosity without a valid reason can negatively affect lubrication, oil pressure, component operation, and long-term engine durability.