5w20 or 5w30

[crackerjack1957]

Well this thread got Angry fast.

As Tallahassee with the #3 says time to nut up or shut up.....LoL
Quote not directed at you Burla ......just a little humor in the forum

 

[Wild one]

oh we didn't need to see that to know you were telling the truth, but thanks for posting it. What does it mean when someone calls someone a liar who is telling the truth? You turn yourself into what you are calling someone else. Hopefully he will drop it at this point, maybe not.

Seems to be a common occurance these days Burla,i now know how to spell "Moron",lol.Us Canucks are dumb sum-******* ,lol

 

[tidefan1967]

so, cheating makes it better???? enjoy.

No but the end does justify the means! I do speed like a mother fu%#er every chance I get too! I have a feeling most people do things every day that would qualify as cheating and are a hell of a lot worse! That being said can't wait for the day one of these guys crank up their truck to a loud ass "tap,tap,tap" and come here looking for answers when the answers were right here all along!

 

[kurek]

What I've gathered from this is that the manufacturer is apparently a source of gospel when it says 5w30 is acceptable but the same manufacturer is a government conspiracy to ruin your engine when they recommend 5w20.

 

[ChevySlayer69]

It's not a conspiracy, but rather a recommendation based on efficiency.

 

[kurek]

It's not a conspiracy, but rather a recommendation based on efficiency.

Ah yeah efficiency which is a bad thing and must be avoided. Boom!

 

[corneileous]

Ah yeah efficiency which is a bad thing and must be avoided. Boom!

At the cost of an engine?? How efficient is that? Cam and lifter failure is a thing with these motors. And a lot of it’s tied to oil weight. It’s no joke.

Look, I’m not totally on track with the whole 5-20 vs 5-30 debate as far as whether or not 5-20 is catastrophically bad but I do believe manufactures go a little too far in trying to please CAFE requirements. Why do you think so many people have brought up the part about how after 2017, FCA dropped the “ok to use” literature towards 5-30 engine oil?? It’s because you’ll get better fuel mileage with the lighter oil, but it’s a tossup whether or not it’ll harm your motor. That’s why I don’t use that typical, run of the mill cheap semi-synthetic crap with that cheap Mopar paper filter at 10,000-mile oil changes.

I may use 5-20, but I use top of the line ****. Synthetic media oil filter and oil changes at the maximum of 7500, to 8,000 miles.

Believe what you want but I guarantee you, it’s not the engineers saying it’s ok to do this. It’s the EPA pushing for cleaner ****.


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[Dusty]

In the owners manual on pg 797 it says a 5.7 in a 1500 should have 5w-20 but if you read on you'll see this:

NOTE: For 2500/3500 trucks with a 5.7L engine operating under a gross combined weight rating of 14,000 lbs (6 350 kg) or greater, SAE 5W-30 meeting FCA Material Standard MS-6395 engine oil is recommended for all operating temperatures.

Why the difference in the same engine? Must be tied to them knowing that a 5.7 in a 2500/3500 is going to get worked harder. I use synthetic oil because of the flow it has when it's cold as many others have stated. That's why I'll use 5w-20 in the winter and 5w-30 in the summer when we tow our travel trailer.

The assumption is that a 5.7 in a 1500 is built to the same specifications as those found in a 2500/3500. Anyone familiar with Mopars knows that there has always been technical differences in their motors based on service (EX: 360s came as 360-1 car, 360-2 truck, 360-3 HD, 360-4 police).

Look at the eight digit in the VIN. The current 5.7 engine code is different for the 1500 and HD motors, as well as cars.

In a completely healthy engine, increasing the viscosity of the oil could produce oil flow issues (viscosity=resistance to flow). This is important because when they went to MDS they changed the main bearing clearance from .0034 to .0021.

Regards,
Dusty
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33 gallon fuel tank, factory dual exhaust, 18” wheels. Build date: 17 July 2018. Now at: 027303 miles.

 

[chrisbh17]

The assumption is that a 5.7 in a 1500 is built to the same specifications as those found in a 2500/3500. Anyone familiar with Mopars knows that there has always been technical differences in their motors based on service (EX: 360s came as 360-1 car, 360-2 truck, 360-3 HD, 360-4 police).

Look at the eight digit in the VIN. The current 5.7 engine code is different for the 1500 and HD motors, as well as cars.

In a completely healthy engine, increasing the viscosity of the oil could produce oil flow issues (viscosity=resistance to flow). This is important because when they went to MDS they changed the main bearing clearance from .0034 to .0021.

Regards,
Dusty
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33 gallon fuel tank, factory dual exhaust, 18” wheels. Build date: 17 July 2018. Now at: 027303 miles.

The next step would be compare the main bearings (maybe just by part numbers) on an MDS engine vs a non-MDS engine. Might as well do the crankshaft too, just in case.

Also, the manual still said 5W-30 was OK, long after they changed to MDS. And the switch to say "5W-20 only" was even later than that.

 

[Rug_Trucker]

I am donning my fire suit. I am a big fan of Rotella semi synthetic diesel oil. I don't own a Hemi. I have run this in a '93 Corolla 1.8. At 246K I did the timing belt and valve cover gasket. That engine looked brand new on the inside! I was the second owner. I had every oil change from the original guy logged. He always put a quart of Duralube in it substituting one quart of oil. (let's not chase that rabbit!) It didn't burn oil when I totaled it out into a guy that decided to do a U-turn on I-40 in front of me. I have 2 Buicks both 3.8 motors. I run the same oil in them.

Diesel oil is high in detergents. It also has more zinc. Yes I've heard the "it'll plug your cats" thing. I am wondering if there is a proper weight diesel oil that you could run. Roller cams and lifters wearing out just totally befuddles common sense! Valve spring pressures can't be that high!

 

[gablett]

I am donning my fire suit. I am a big fan of Rotella semi synthetic diesel oil. I don't own a Hemi. I have run this in a '93 Corolla 1.8. At 246K I did the timing belt and valve cover gasket. That engine looked brand new on the inside! I was the second owner. I had every oil change from the original guy logged. He always put a quart of Duralube in it substituting one quart of oil. (let's not chase that rabbit!) It didn't burn oil when I totaled it out into a guy that decided to do a U-turn on I-40 in front of me. I have 2 Buicks both 3.8 motors. I run the same oil in them.

Diesel oil is high in detergents. It also has more zinc. Yes I've heard the "it'll plug your cats" thing. I am wondering if there is a proper weight diesel oil that you could run. Roller cams and lifters wearing out just totally befuddles common sense! Valve spring pressures can't be that high!

Many of my friends are truckers and every one of them run rotella in their vehicles. All of them. I’ve run it in a lot of stuff from high performance racing quad motors to cars and lawn mowers. Always been great stuff.


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[Mr led]

I called factory they told me that you can use 5w30 instead 5w20 .the only thing will happen.is you will loose a little gas mileage.i lost 1to2 miles a gallon.to me it is fine weather have the protection. On my Subaru you can not change will blow out the seals to tight of clearance.

 

[Wild one]

For ***** and giggles this morning I stopped at my local Canadian Tire and pulled a couple bottles of 5W-30 to see if they had the Chryco MS spec on them,everything from Penzoils PUP to Canadian Tires own oil (basically rebranded Shell) had the Chryco spec on the bottle,the only one that didn't was Mobil 1's synthetic .Looks like there's a few brands of 5W-30 that meet Ma Mopars MS specs and would be perfectly acceptable to run in your 09 to 2016 5.7,although I have a buddy with a very early 17 and he had the printed manuals on order the day he ordered his truck,(i'd already clued him into how to get them,and he had the dealer order them the same day he ordered the truck),and his manual still says 5W-30 is acceptable,although it seems the later 2017 manuals have that note removed

 

[mlaugh]

so I met up at gas station last mouth truck like mine ask hows his around 115,000 on it the lifters wore out damage cam all replace himself 5,000 pretty much ! so I go buy what the gut said don't understand why oil change 3,000 5w -20 what it says city driver just drive to work never off road ! hummmm started hear ticking noise wasn't sure why boom on freeway all went to h e ___ so he loves truck fixed it but I sat with a lump in my throat then on line saw a lot on utube and the signs omg one was on my engine already every 16 mouths hope it's just two plugs or injectors last thing is lifter wore out burned metal right off the cam the lifter needle bearings wipe out ! go watch it on u tube code sp 301 was mine but hasn't gone on again did twice in a week ! no code now soon change plugs and swipe coils one put on number 2 see what happens next year guess ! 59,000 miles on my truck ! scary right !

That's one long sentence there .................but thanks for the information.

 

[Dusty]

"Look at the eight digit in the VIN. The current 5.7 engine code is different for the 1500 and HD motors, as well as cars."


Regards,
Dusty
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33 gallon fuel tank, factory dual exhaust, 18” wheels. Build date: 17 July 2018. Now at: 027303 miles.

I need to correct my above statement.

Third gen Rams differentiated the engine using the eight digit in the VIN. For 1500s it was D, for 2500s if was F.

However, beginning with 4th gens the eight digit indicates the engine displacement. So, all Rams regardless of weight class will use the same character for the 5.7 Hemi. (For 4th and 5th gen, all 5.7 truck motors use the letter T). The specific engine internal specifications become differentiated by the very first digit (EX: a 1 for 1500, a 3 for 2500).

My apologies.

Best regards,
Dusty

 

[Wild one]

I need to correct my above statement.

Third gen Rams differentiated the engine using the eight digit in the VIN. For 1500s it was D, for 2500s if was F.

However, beginning with 4th gens the eight digit indicates the engine displacement. So, all Rams regardless of weight class will use the same character for the 5.7 Hemi. (For 4th and 5th gen, all 5.7 truck motors use the letter T). The specific engine internal specifications become differentiated by the very first digit (EX: a 1 for 1500, a 3 for 2500).

My apologies.

Best regards,
Dusty

It's my understanding there's not much difference in the later 5.7 engines other then cams,bearing clearances etc,are the same whether it's a 5.7 in a 1500 or a 2500

 

[chrisbh17]

It's my understanding there's not much difference in the later 5.7 engines other then cams,bearing clearances etc,are the same whether it's a 5.7 in a 1500 or a 2500

Im not quite sure why FCA would do it any other way....they are the kings of cost cutting, so why build separate lines of parts for the same engine in the same basic application?

 

[corneileous]

I called factory they told me that you can use 5w30 instead 5w20 .the only thing will happen.is you will loose a little gas mileage.i lost 1to2 miles a gallon.to me it is fine weather have the protection. On my Subaru you can not change will blow out the seals to tight of clearance.

You called the factory??...lol. You know, I could actually see why they would stop including the instructions for like, disabling the seatbelt reminder, just so that it would be a deterrent not to do it, or to maybe give you a lecture at the dealership on why you shouldn’t but, if 5w-30 is still ok then why would they not say you could if if it was ok?


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[chrisbh17]

For ***** and giggles this morning I stopped at my local Canadian Tire and pulled a couple bottles of 5W-30 to see if they had the Chryco MS spec on them,everything from Penzoils PUP to Canadian Tires own oil (basically rebranded Shell) had the Chryco spec on the bottle,the only one that didn't was Mobil 1's synthetic .Looks like there's a few brands of 5W-30 that meet Ma Mopars MS specs and would be perfectly acceptable to run in your 09 to 2016 5.7,although I have a buddy with a very early 17 and he had the printed manuals on order the day he ordered his truck,(i'd already clued him into how to get them,and he had the dealer order them the same day he ordered the truck),and his manual still says 5W-30 is acceptable,although it seems the later 2017 manuals have that note removed

We do need to keep in mind that Chrysler spec is not just for the 5.7 in our trucks, it may very well be that 5W-30 can get that spec and is correct for other applications. Unfortunately 5W-20 is what is "correct" for our trucks.....at least for lining someones pockets (hint: not ours)

 

[JayLeonard]

Are these engines (all 5.7 hemis) built (assembled) in one factory or multiples?
Do the camshafts and lifters come from one source?