Maximize 3.6 Reliability

[Logan-Kn]

Hey all,
I know this is kinda a ridiculous question to ask on a CJDR product based on their track records. I got the all gas 3.6 v6 because it was the most tried and true engine for the Jeep that has proved itself for years with some high mileage examples.

Of course I know they all have their potential of systemic failures and quality control issues. That being said, do any of the 3.6 masters & Gurus have any recommendations on mods or routine service outside 5k oil changes and good oil/air filters to help extend the life and reliability of this engine? I want to run this engine for as long as possible before it eventually pops and I get to swap a v8 in ?

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[j2.pictures]

Following. The dealer gave me a list of good, better, best for the 30k mile service, and in that was like a walnut-type blast through the manifold. I am thinking that is going to be the best thing to do every 30k miles. Keeping spark plugs fresh by changing at 60k miles. make sure to inspect your belts so your engine doesn't have to strain on a slipping belt, etc.

 

[Logan-Kn]

Following. The dealer gave me a list of good, better, best for the 30k mile service, and in that was like a walnut-type blast through the manifold. I am thinking that is going to be the best thing to do every 30k miles. Keeping spark plugs fresh by changing at 60k miles. make sure to inspect your belts so your engine doesn't have to strain on a slipping belt, etc.

I thought walnut blasting wasn’t necessary on the 3.6 because the non direction injection cleaned the backside of the valves. I think the 4cyl does need it every 30k though

 

[j2.pictures]

I thought walnut blasting wasn’t necessary on the 3.6 because the non direction injection cleaned the backside of the valves. I think the 4cyl does need it every 30k though

Not too sure. I work at a Jeep dealer but I’m on the sales side, so service isn’t much of what I know. My service advisor just gave me the printout, and have been trying to do some research myself. That does sound about right though for the turbo engine.

 

[rickinAZ]

I always change the oil 2X as often as the manufacturer's recommendation. Cheap engine insurance.

 

[mwilk012]

Not too sure. I work at a Jeep dealer but I’m on the sales side, so service isn’t much of what I know. My service advisor just gave me the printout, and have been trying to do some research myself. That does sound about right though for the turbo engine.

Learning more about the products can only help. Walnut blasting is a complete waste of time and money on the 3.6.
The best thing for it is good quality API SN plus oil, and top tier gasoline with as low of ethanol content as possible.

 

[jellis4148]

Learning more about the products can only help. Walnut blasting is a complete waste of time and money on the 3.6.
The best thing for it is good quality API SN plus oil, and top tier gasoline with as low of ethanol content as possible.

Wow, you are one of the first people I've read on here that thinks the same as me on oil and fuel. Top Tier fuel is the best thing for long life of an engine. Even if it isn't a DI engine.

 

[Spartan99]

I always change the oil 2X as often as the manufacturer's recommendation. Cheap engine insurance.

That’s great that you like to look after your stuff so well but this is not necessary. It’s not helping the engine much if at all. The interval schedule with today’s oils is good enough.

 

[TheNewGuy]

Not too sure. I work at a Jeep dealer but I’m on the sales side, so service isn’t much of what I know. My service advisor just gave me the printout, and have been trying to do some research myself. That does sound about right though for the turbo engine.

Is it normal for dealership service depts to screw over the sales employees?

 

[j2.pictures]

Is it normal for dealership service depts to screw over the sales employees?

Absolutely! That’s why I always do my own research when they give me any type of info.

 

[TheNewGuy]

Absolutely! That’s why I always do my own research when they give me any type of info.

Yikes

 

[jellis4148]

Is it normal for dealership service depts to screw over the sales employees?

You sell cars, and you don't know if your service department is screwing you over? You just drink all the kool-aid the give you, don't you?

 

[TheNewGuy]

You sell cars, and you don't know if your service department is screwing you over? You just drink all the kool-aid the give you, don't you?

I'm not the OP nor do I work at a dealership, bro.

 

[jellis4148]

I don't work at a dealership, bro.

Shit my bad. The other guy did. Sorry.

 

[j2.pictures]

Shit my bad. The other guy did. Sorry.

That would be me. Fortunately no I don’t let them screw me over hence the research I do when they feed me said Kool Aid

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