There's a few people I've read about, who swear that certain brands of oil quiet the "tick" down. But I have never read a thread where an oil eliminates the "tick" totally. I've tried personally several different brands without any luck.

As for the Synthetic/mineral oil question your asking........well 92,000 miles is getting up to where a lot of the valve guides, rings and seals and stuff are naturally worn.
A synthetic, although being a far superior oil to mineral, has the quality of "de-sludging" an engine with the additives it carries in it.
So as it goes around the engine, it cleans all this carbon and sludge gunk build up away.
The upshot is, that on high mileage engines this sludge can be the very stuff that these guides and rings and seals and stuff rely upon, to effectively seal.
When this is removed by the synthetic oil, it's not uncommon for the engine to then start burning oil, run like crap and the compression to drop etc etc etc.

You I would say, are right at that point of "do I ........don't I"?????
The proverbial $64000 question.

That's a gamble you must decide on yourself.
There is no easy way to tell except to try it, with the resultant consequences that may unfold.
I know that this might seem as if I'm sitting on a fence but, that's the truth of it and I don't want you saying "I put synth in on your advice and now the engine runs like crap and burns oil".

Personally with your mileage, I'd stick with the best mineral oil I could find and change oil and filters regularly.
If the winters where you are get severe and the temps are lwell below zero, consider a 0W-30 rating to help with the cold starts.

If this truck is new to you with no history, consider a transmission fluid drop and do not go for a "flush".
A flush will also break away the dirt and debris a higher mileage truck might have with a resultant possible tranny failure.
Just drop the pan, change both filters and top off with fresh ATF. On a pan drop, that's usually around the 6-7 quart mark.

Hope this helps?
Al.

 

Seven quarts of 5w-30 and a K&N filter. With 102K on mine, I use Pennzoil Hi-Mileage oil.

 

Royal Purple quieted down my Hemi Tick somewhat. As I've posted many times, I was an AVID Mobil 1 guy for a good 20 years before I tried Royal Purple in my Jeep and it seemed to love it!
The tick still can be heard with the RP but is a good bit quieter than when I ran Mobil 1 in there.

My Jeep Grand Cherokee's performance has been dramatic with RP in the whole thing, Tranny, transfer case, diffs, and crank. Butt dyno registers more power and I can document a solid 1.5 mpg increase over Mobil 1 in the crank.

The truck has RP in the crank and front diff only (tranny and transfer not due yet & my rear diff requires dino oil due to the Auburn LSD). Other than the quieter Hemi tick, it is not getting the same MPG pluses that the Jeep got. No worse than with Mobil 1, but no better either.

 

5W-30, it's listed right on top of the 7IO cap.....

 

I have an '06 with MDS and have always used the recommended 5w-20. I tried all types of different brands both conventional and synthentic. Mine would still tick when cold. The tick goes away when it's warm. Other than that, runs great and doesn't use any oil at 35K so far.

 

K thanks for the info...

 

I just talked to the guy i baught the truck from and he said he used Castrol SYNTEC Blend 5w30. or mobile1 5000 syntec blend 5w30.

 

There you go then.
Use a good quality synth and your good to go.
Use the 5W 30.
Al.

 

Okay so the oil he used when changing the oil are full sinthetic or semi?

 

hey man i live in maine to i have an 04 Ram with the 5.7l and i also had a 98 jeep wranlger when i had the engine rebuilt the guy told my to run reg oil for 100,000 cuase it helps seat the piston rings then switch to synthetic. when i bought my truck it had 50,000 miles and only reg 5w30 was run threw it. when it hit 100,000 i got castrol syntec 5w30 7 quarts and iv run it for a year now no problems and it really quited the hemi ticking to. just ask the old school mechanics who rebuild engines maines got tons of them.