Synthetic Oil

[knightjp]

You've sure had a rough go of it with lifter failure, hopefully that's behind you. Video sounds nice and smooth as far as I can tell.

Thanks. I don't know if this would be useful as a data point, but it should be noted that the video was taken and posted in August - which is one of the hottest months of the year here in Dubai. The temps average in between 46 - 49.C.

 

[Burla]

If you look at their 15w40 tells a better story, lower cSt but higher hths.

 

[crackerjack1957]

What about the anti drain back valve? Somebody here once said that the heat makes the valve seat better (or something along those lines), ever since I read that I started paying attention to my oil temps and that's how I got to that observation that I need at lest 60 deg

How many have run 5w40 redline in a 6.4? Or 5.7? 15.6 cst and 4.4 HTHS... wow

Would work great in 90° F plus regions.

 

[HEMIMANN]

Isn't 0w40 the recommended oil for the 6.4 Hemi?

Yes. By the ignorant vehicle maker.

 

[ramffml]

Agree with idle time, that's why mine is bumped to 750rpm@idle.
Doesn't take long for warmup in NC either.

Ping you say, so the thinner weight didn't help with VVT.
Ping in the summer months only with normal operating temps or constant even when cooler?
Octane rating you run?
Have your mechanic to look at combustion chamber for carbon deposits with borescope.

When I asked him to look at it he asked me my oil and I was running 5w-30; of course he just said, put 5w-20 in it and check again so I did that back in Sept last year. It's been better since, but here we get into the issue of changing multiple things at once. I know for certain it never pings in the summer when its cold. But if you add heat (especially towing) and/or run 87 octane its terrible. It always sounds better in the winter months regardless of oil because my temps are usually colder.

Definitely getting a scope at some point. But considering I noticed it from the first month of ownership (brand new engine) and the owners manual mentions it specifically, I suspect it's "running as designed" and only a custom tune backing out some timing will get rid of it completely.

I have been running 91 for a long time now, but did run 89 for a few years before that. It really does not like 87 at all. One time I got caught in a small rural town with my trailer behind me, almost out of gas and filled up with 87 because of course they were out of premium, and I swear coming home on some hills out by Barrie/ON I thought I was going to spill all the marbles out on the freeway. Never, ever doing that again. I carry spare fuel jugs in my bed when making long trips now.

 

[crackerjack1957]

When I asked him to look at it he asked me my oil and I was running 5w-30; of course he just said, put 5w-20 in it and check again so I did that back in Sept last year. It's been better since, but here we get into the issue of changing multiple things at once. I know for certain it never pings in the summer when its cold. But if you add heat (especially towing) and/or run 87 octane its terrible. It always sounds better in the winter months regardless of oil because my temps are usually colder.

Definitely getting a scope at some point. But considering I noticed it from the first month of ownership (brand new engine) and the owners manual mentions it specifically, I suspect it's "running as designed" and only a custom tune backing out some timing will get rid of it completely.

I have been running 91 for a long time now, but did run 89 for a few years before that. It really does not like 87 at all. One time I got caught in a small rural town with my trailer behind me, almost out of gas and filled up with 87 because of course they were out of premium, and I swear coming home on some hills out by Barrie/ON I thought I was going to spill all the marbles out on the freeway. Never, ever doing that again. I carry spare fuel jugs in my bed when making long trips now.

Well ya got your answer then, more octane or de-tuned to run 87.......LoL

 

[knightjp]

Yes. By the ignorant vehicle maker.

I wouldn't call them ignorant. Well my dealership wasn't. They knew perfectly well what the 5w20 was doing to my engine, but sold me the oil anyway. I was the ignorant one - following the manual.
Most of the lifter failures I've heard happen to the 5.7, so I assumed that the 6.4s were mostly OK because they were already running the perfect oil for their application.
what is the best oil for the 6.4?

 

[Wild one]

I wouldn't call them ignorant. Well my dealership wasn't. They knew perfectly well what the 5w20 was doing to my engine, but sold me the oil anyway. I was the ignorant one - following the manual.
Most of the lifter failures I've heard happen to the 5.7, so I assumed that the 6.4s were mostly OK because they were already running the perfect oil for their application.
what is the best oil for the 6.4?

The amount of 6.4's they sell in comparision to the 5.7's they sell is just a drop in the bucket,so you're going to hear about 5.7 lifter failures more,but if you go on any of the Challenger/Charger FB pages or forums,you'll see the 6.4 has the same lifter issues as the 5.7's have

 

[knightjp]

If you look at their 15w40 tells a better story, lower cSt but higher hths.

Is it possible to run that weight in our engines?
I just heard from one person who runs 10w30 in his Ram and is currently has mileage of over 178,000 miles without incident.

 

[tjfdesmo]

Is it possible to run that weight in our engines?
I just heard from one person who runs 10w30 in his Ram and is currently has mileage of over 178,000 miles without incident.

Never tried it, but when I was running 5W40 RL in my 6.4 my buddy with a 5.7 misunderstood me, and ran an OCI or two of 10W40 RL. No tick, no codes, no problems.

 

[Hemi395]

@knightjp here is that post.

Synthetic Oil

Which Fumoto valve is the preferred one to use? Look above its linked 20 post up Sent from my SM-G900V using Tapatalk

www.ramforum.com

The link I originally had was changed for some reason, I think when they did the last update to the site.

 

[HEMIMANN]

I wouldn't call them ignorant. Well my dealership wasn't. They knew perfectly well what the 5w20 was doing to my engine, but sold me the oil anyway. I was the ignorant one - following the manual.
Most of the lifter failures I've heard happen to the 5.7, so I assumed that the 6.4s were mostly OK because they were already running the perfect oil for their application.
what is the best oil for the 6.4?

No, I mean by Stellantis and the EPA.

Best oil for any Hemi has sufficient viscosity for the loads intended and ambient temperature you operate in - PLUS a big slug of moly additive to get the lifters to live (and save the cam).

For me, where I live (near Canada border in middle of NA), that's Red Line 5W-30 summer, Red Line (or HPL) 0W-30 winter. I tow a 7,000 lb travel trailer, btw.

Here in the Siberia of North America, ambient temperature ranges from +100 degrees F to -30 degrees F, with constant wind.

The garden spot of the globe.

 

[knightjp]

@knightjp here is that post.

Synthetic Oil

Which Fumoto valve is the preferred one to use? Look above its linked 20 post up Sent from my SM-G900V using Tapatalk

www.ramforum.com

The link I originally had was changed for some reason, I think when they did the last update to the site.

@Hemi395 Quite the story. What is PYB? I know it stands for Pennzoil Yellow Bottle, but all Pennzoil bottles are yellow.

 

[Hemi395]

@Hemi395 Quite the story. What is PYB? I know it stands for Pennzoil Yellow Bottle, but all Pennzoil bottles are yellow.

Lol very true, never thought about that. They didn't all used to be, the PP & PUP bottles used to be dark gray. PYB is what we used to call their dino oil

 

[knightjp]

Lol very true, never thought about that. They didn't all used to be, the PP & PUP bottles used to be dark gray. PYB is what we used to call their dino oil

Is PYB synthetic or semi-synthetic?
Is this it?

 

[Hemi395]

Is PYB synthetic or semi-synthetic?
Is this it?
View attachment 540037

Yep, that is the "PYB" we were referring to.

Unless something has changed in the last few years, it is not synthetic...

 

[HEMIMANN]

Partial, semi, mostly, all natural synthetic*

* maybe

 

[knightjp]

Yep, that is the "PYB" we were referring to.

Unless something has changed in the last few years, it is not synthetic...

The bottle says "Synthetic Blend" so I'm assuming its "semi-synthetic".

 

[Hemi395]

The bottle says "Synthetic Blend" so I'm assuming its "semi-synthetic".

Really? Wow ok I would say it's a synthetic blend now...

 

[crackerjack1957]

According to Pennzoil's website they don't make a conventional oil anymore even though they list it under products.
Guess it could be a mistake, not sure.

Pennzoil® Motor Oil

Pennzoil® motor oil is formulated with Active Cleansing Technology and is proven to protect engines in SAE 10W-30, 10W-40, 20W-50, 5W-20 and 5W-30 viscosities.

www.pennzoil.com