oil change

[norwall]

hi, i just got a 07 durango with 83k and need a oil change, any suggestions? ive been told go with syn blend? or do i go full syn or just stay with whats in it valvoline conventional. Thanks

[Jeremy airjer W]

4.7 liter?

How often do you want to change oil?

[norwall]

yes 4.7 every 5k preferably as I mostly drive hwy miles

[jwhjr]

If every 5k you might as well just put conventional in it.

[1968]

Keep in mind it has a 15 piece timing chain set that requires oil pressure for tensioning and plenty of lubrication for all the plastic guides.

[norwall]

i went with Valv max life syn blend

[norwall]

how many miles would ya all go in between oil changes using the valvoline max life syn blend ?

[Jeremy airjer W]

Whatever the manufacturer recommends or every 5k as you have been doing.

[Walleyehooker]

I run full synthetic in everything I own because it is the best oil out there. Why go half way? I run it about 6000 miles in the vehicles but I change it myself and not worried about saveing $20 a year.

[fishnowworknever]

I run full synthetic in everything I own because it is the best oil out there. Why go half way? I run it about 6000 miles in the vehicles but I change it myself and not worried about saveing $20 a year.

edit

I have had full synthetic leak through valve cover gaskets on older vehicles...also is it true that full syn can leak through the older engines with a larger gap in the cylinder?

[Whoaru99]

There isn't really any good reason I've heard why a synthetic oil would cause oil consumption or leaks. OTOH, if your engine is already burning oil and or leaking it, I would not expect it to burn or leak any less synthetic.

[Macgyver55]

There isn't really any good reason I've heard why a synthetic oil would cause oil consumption or leaks

I've never heard it causes leaks, only that the smaller molecules of the synthetic are able to get past very small crevices, where the larger molecules of conventional oil cannot.

If all your engine seals and gaskets are in good condition, synthetic oil shouldn't leak any more or less than any other oil.

[SkunkedAgain]

Since this thread has slightly morphed, I'll ask if using one of the high mileage oils would help the OP's situation?

[Walleyehooker]

I remember years ago they would say synthetic would cause leaks if you switched over but I think that was a myth. Never hear that anymore.

[Scott K]

Mac nailed it. It wont make a seal leak, but you will notice more leaks while using it, because of the thinner compound of it, thinner/smaller will leak out of the small holes, that werent leaking with conventional oils, that are thicker/larger molecules.