Synthetic Oil

Oil of Choice

  • Castrol Syntec/Edge

    Votes: 237 8.5%
  • Royal Purple

    Votes: 327 11.7%
  • AMSOil

    Votes: 401 14.4%
  • Valvoline Synpower

    Votes: 161 5.8%
  • Mobil 1

    Votes: 999 35.8%
  • Other

    Votes: 664 23.8%

  • Total voters
    2,789

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Kotta390

Senior Member
Joined
Jul 6, 2015
Posts
1,078
Reaction score
233
Location
Texas
Ram Year
2014
Engine
Hemi 5.7
Wow my oil pressure is very high compared to you guys. I run at hot idle in park about 45-46psi and 54-56psi cruising on the highway.
 

Nutshell

Senior Member
Joined
Feb 4, 2014
Posts
658
Reaction score
471
Ram Year
2020
Engine
5.7 HEMI
Wow my oil pressure is very high compared to you guys. I run at hot idle in park about 45-46psi and 54-56psi cruising on the highway.

What flavor are you running?
 

Burla

Senior Member
Military
Joined
Apr 28, 2012
Posts
23,422
Reaction score
45,428
Ram Year
2010 Hemi Reg Cab 4x4
Engine
Hemi
Can't compare running QSUD and Redline. Even QSUD's top oil blatenly run Viscosity Improvers proudly. That is how dumb the general public is, QSUD tells you they use their brand of corn starch to hold viscosity and nobody does the research on what they give for that benefit. Of course those who pay attention would know you give up shear. The HTHS on Redline 5w30 is 3.7, if QSUD's is higher I stand corrected. If the oil is reputable, you should be able to find HTHS. At the end of a interval, you pay a price having having an oil with impovers. Like Raven said, 4k miles would be a better idea.

There is a reason why QS tests lowest on high temp high shear on all of these test oils. There is also a reason why Amsoil didn't want to include Redline, if Redline was on this graph they would be off the chart as it was 30 weight that was tested. The chart shows the range of 2.95 through 3.23 as the highest oil tested, and toss Redline 3.5 for 10w30 blows the chart out of the water. Also why I recommend 5w30 over 10w30 or 0w30, the 5 weight is usually a better oil across the board. But hey I'm sure the hacks will attempt to divert common sense.

compar2.jpg
 
Last edited:

Rampant

Senior Member
Joined
May 21, 2016
Posts
1,895
Reaction score
1,836
Location
NJ
Ram Year
2016
Engine
392 Hemi
I think with Amsoil, their claims are "meets or exceeds" but they have never been certified officially. I'm sure most good oils meet the requirements but aren't actually certified which I why you won't see the donut on the bottle.
This is the back of an Amsoil 0W-40 SS bottle for my 6.4

uploadfromtaptalk1466113320421.jpg

Sent from my SM-G920V using Tapatalk
 

Danno

Senior Member
Joined
Mar 15, 2016
Posts
490
Reaction score
102
Location
Mid Atlantic
Ram Year
2016 Power Wagon
Engine
6.4
There's nothing wrong with the standard orange fram filter. They have been around for decades and if there was issues they would have pulled or changed them.

The higher the micron level of filter equals the more bypass of unfilter oil.
 

AFMoulton

Senior Member
Military
Joined
Apr 1, 2016
Posts
3,178
Reaction score
5,194
Location
Nuevo Mexico
Ram Year
2018
Engine
6.4 Hemi
Can't compare running QSUD and Redline. Even QSUD's top oil blatenly run Viscosity Improvers proudly. That is how dumb the general public is, QSUD tells you they use their brand of corn starch to hold viscosity and nobody does the research on what they give for that benefit. Of course those who pay attention would know you give up shear. The HTHS on Redline 5w30 is 3.7, if QSUD's is higher I stand corrected. If the oil is reputable, you should be able to find HTHS. At the end of a interval, you pay a price having having an oil with impovers. Like Raven said, 4k miles would be a better idea.

There is a reason why QS tests lowest on high temp high shear on all of these test oils. There is also a reason why Amsoil didn't want to include Redline, if Redline was on this graph they would be off the chart as it was 30 weight that was tested. The chart shows the range of 2.95 through 3.23 as the highest oil tested, and toss Redline 3.5 for 10w30 blows the chart out of the water. Also why I recommend 5w30 over 10w30 or 0w30, the 5 weight is usually a better oil across the board. But hey I'm sure the hacks will attempt to divert common sense.

compar2.jpg
This post was very informative, and good info on the graph, then the last sentence. Seriously. Just stop. Some of us are trying to learn and get real info and then you add that in.......
 

BlueRT

Senior Member
Joined
Aug 20, 2014
Posts
231
Reaction score
231
Location
Ohio
Ram Year
2014
Engine
Hemi 5.7
Certified

This is the back of an Amsoil 0W-40 SS bottle for my 6.4

View attachment 72945

Sent from my SM-G920V using Tapatalk[/QUOTE

Not "Certified". Just like Mobil 1, Castrol, Valvoline, Red Line, Amsoil, etc., they are all "Recommended For". The only oils I know of that are both API SN and Chrysler MS6395 certified motor oils are made by the Shell oil company.
 

Rampant

Senior Member
Joined
May 21, 2016
Posts
1,895
Reaction score
1,836
Location
NJ
Ram Year
2016
Engine
392 Hemi
Can't compare running QSUD and Redline. Even QSUD's top oil blatenly run Viscosity Improvers proudly. That is how dumb the general public is, QSUD tells you they use their brand of corn starch to hold viscosity and nobody does the research on what they give for that benefit. Of course those who pay attention would know you give up shear. The HTHS on Redline 5w30 is 3.7, if QSUD's is higher I stand corrected. If the oil is reputable, you should be able to find HTHS. At the end of a interval, you pay a price having having an oil with impovers. Like Raven said, 4k miles would be a better idea.

There is a reason why QS tests lowest on high temp high shear on all of these test oils. There is also a reason why Amsoil didn't want to include Redline, if Redline was on this graph they would be off the chart as it was 30 weight that was tested. The chart shows the range of 2.95 through 3.23 as the highest oil tested, and toss Redline 3.5 for 10w30 blows the chart out of the water. Also why I recommend 5w30 over 10w30 or 0w30, the 5 weight is usually a better oil across the board. But hey I'm sure the hacks will attempt to divert common sense.

compar2.jpg

The reason Amsoil doesn't publish Redline's numbers beside it's own is because the two used different tests. Amsoil used ASTM D4683 and Redline used ASTM D4741.

According to ASTM.org, the test Redline uses (D4741) "is considered to be representative of that at the temperatures and shear rates but not the pressures in the journal bearings of internal combustion engines under operating conditions." Why would an automotive oil producer publish their oils' results using a test that wasn't meant to test automotive motor oils?

The test that Amsoil and most other oil companies use (D4683) says "this test method is thought to be representative of the condition encountered in the bearings of automotive engines in severe service."

Hmm. Oddly enough, I couldn't find another automotive oil that uses that test. Must be a coincidence.
 

BlueRT

Senior Member
Joined
Aug 20, 2014
Posts
231
Reaction score
231
Location
Ohio
Ram Year
2014
Engine
Hemi 5.7
Not Alone

Wow my oil pressure is very high compared to you guys. I run at hot idle in park about 45-46psi and 54-56psi cruising on the highway.

You are not alone! My hot idle pressure is normally 47/48 on 5W/30 RL. I may use 5w/20 RL for the winter. I have about 700 miles on this 5w/30 and a Fram Ultra filter. Engine is the quietest it has ever been, oil pressure analog gauge is always in the normal range, and no check engine light. I must confess though when the truck sits for 3 weeks or longer some of the lifters do bleed down ( the ones under pressure when it was shut off I suspect ) and there will be some lifter clatter for about 3 seconds on a cold start up. I told my friend the Chrysler master tech about this cold start after sitting a long time concern and he said ****!
 

Rampant

Senior Member
Joined
May 21, 2016
Posts
1,895
Reaction score
1,836
Location
NJ
Ram Year
2016
Engine
392 Hemi
This is the back of an Amsoil 0W-40 SS bottle for my 6.4

View attachment 72945

Sent from my SM-G920V using Tapatalk[/QUOTE

Not "Certified". Just like Mobil 1, Castrol, Valvoline, Red Line, Amsoil, etc., they are all "Recommended For". The only oils I know of that are both API SN and Chrysler MS6395 certified motor oils are made by the Shell oil company.
uploadfromtaptalk1466117704342.jpg

This is the back of an Amsoil 5W-30 OE bottle.

Amsoil's OE and XL line of oils are API certified. Great for people who are worried about warranty issues.

Sent from my SM-G920V using Tapatalk
 

smiley

Senior Member
Supporting Member
Joined
Apr 18, 2011
Posts
6,623
Reaction score
2,961
Location
Minot, ND
Ram Year
2014 Ram 2500 Crew
Engine
6.7L Cummins
Can't compare running QSUD and Redline. Even QSUD's top oil blatenly run Viscosity Improvers proudly. That is how dumb the general public is, QSUD tells you they use their brand of corn starch to hold viscosity and nobody does the research on what they give for that benefit. Of course those who pay attention would know you give up shear. The HTHS on Redline 5w30 is 3.7, if QSUD's is higher I stand corrected. If the oil is reputable, you should be able to find HTHS. At the end of a interval, you pay a price having having an oil with impovers. Like Raven said, 4k miles would be a better idea.

There is a reason why QS tests lowest on high temp high shear on all of these test oils. There is also a reason why Amsoil didn't want to include Redline, if Redline was on this graph they would be off the chart as it was 30 weight that was tested. The chart shows the range of 2.95 through 3.23 as the highest oil tested, and toss Redline 3.5 for 10w30 blows the chart out of the water. Also why I recommend 5w30 over 10w30 or 0w30, the 5 weight is usually a better oil across the board. But hey I'm sure the hacks will attempt to divert common sense.

compar2.jpg



That graph is from 2005!??!?? Kind of dated to mean much. Why are you being to angry in here these days? Conversation is fun and btw I don't even run QSUD but I am certain it can make it 10k. I am fairy certain redline could make it 15-20k. My point really was running a group 3 to 10k is not a huge deal and if you are going to pay so much for group 4 or 5 you need to run it all the way through not waste it on OCI a group 3 could handle. I owe nothing to any oil brand. I just like to debate and talk about oil. You are not going to hurt my feelings no matter what you use or how long you use it but I still say the filter selection it more important than the oil brand selection. Also doesn't 5W-20 sheer less than 0W-30 and 5W-30?
 

Burla

Senior Member
Military
Joined
Apr 28, 2012
Posts
23,422
Reaction score
45,428
Ram Year
2010 Hemi Reg Cab 4x4
Engine
Hemi
Also doesn't 5W-20 sheer less than 0W-30 and 5W-30?

Depends, 5w30 Redline will likely never shear off viscosity in a gas engine unless there is a problem with the tolerances, but an oil like QSUD will likely shear of viscosity. It is near impossible for any 20 weight to shear off viscosity in a gas engine. True synthetics have a base of 30, mineral base out at 10. They have to add a lot of junk to get to 30 weight, but Redline would be 30 weight right out of the test tube. here

Can read this as a bonus, look at the oils this guy prefers, look for the asterisk. Only non Redline oil would be the Euro Castrol that Syn loves. His favorite 5w30, is Redline 5w20, lol. So Bobstheoilguy motor oil university Prefers Redline in every grade over all other synthetic oils, except the 40 grade, which he like Syn's oil. Validation for Redline users?


As to answer your question, the hack crew has accused me of shilling and being a liar, so yeah I do have an edge.
 
Last edited:

BlueRT

Senior Member
Joined
Aug 20, 2014
Posts
231
Reaction score
231
Location
Ohio
Ram Year
2014
Engine
Hemi 5.7
A couple quotes

Hera are two of my favorite quotes from highly respected members on BITOG:

If you really want to know which oil is best for your engine, the only way to find out is to do a long series of UOA comparisons. Every engine is different, will be in a different condition and subject to a different application to other engines, so simply looking at test results does not tell the whole story.

It's been a going joke among lube engineers that Coca Cola passes the 4-ball test the best, which is true..
 

Burla

Senior Member
Military
Joined
Apr 28, 2012
Posts
23,422
Reaction score
45,428
Ram Year
2010 Hemi Reg Cab 4x4
Engine
Hemi
You have to start somewhere Blue. Use info to narrow down to a couple of oils, then run some uoa's using different oils in the same engine after you have 20k miles on the engine. I am definitely a fan of trying different oils and find out for yourself. on something other then marketing.
 

raven3

Senior Member
Joined
Oct 31, 2015
Posts
496
Reaction score
262
Location
Central CA
Ram Year
2015
Engine
5.7L Hemi RCSB Express
RodRam
Recently disassembled a Fram Ultra XG10060.
This filter does incorporate a compression coiled spring for the relief valve.
The compression spring is located under the nylon plunger.
The coil spring and plunger are supported by a leaf spring.
The purpose of the pre stressed leaf spring is to function as an anti rattle device to keep the filter media positioned in the can and not the relief valve spring.
To my knowledge all oil filters with an internal relief valve incorporate a compression coiled spring.
 

SyN

6.7L CTD Owner
Joined
May 6, 2014
Posts
3,104
Reaction score
4,846
Location
Tornado Alley
Ram Year
2017 4WD - Tow Prep Pkg - Off-Road Pkg - 3:42s w/Anti-Slip
Engine
6.7L CTD
Ah Burla! I am touched you remembered the Sacred Oil that I had a Major Man Crush on.

Here is one of Many UOAs of PUP 5W-30 faced up against the Legendary German Castrol. Practically every UOA of PUP 5W-30 has shown these same results. Thus the Reason why I have chosen and have future plans on using it. As long as I can buy it from Amazon.

Even though SOME of us know the UOA only tells or shows 1/2 the story. This is not a Hemi! Yes I know! But the hundreds of UOAs I have seen with PUP 5W-30-->Almost ALL show very similar results within the Daily Driver.

Pennzoil Ultra 5w-30, 7248 mi, 82442 mi overall | Used Oil Analysis - Gasoline | Bob Is The Oil Guy

I want to give a special Thank You to Gena Fishbeck {Special Member of the Pennzoil Team} for the 2 FREE Cases of PUP 5W-30. Not to many oil companies would go out of their way to do this.

When these 2 UOAs of my Combo return I will share with my friends.
 
Last edited:

Burla

Senior Member
Military
Joined
Apr 28, 2012
Posts
23,422
Reaction score
45,428
Ram Year
2010 Hemi Reg Cab 4x4
Engine
Hemi
What was with the dates? It appears the other oil was like 5 years difference? I would like to see numbers on his last run closest to the 2016. Anyhow, been loving Ultra since day one like all of the other guys as well.

GC no Moly, there ya go did not know that.
 

raven3

Senior Member
Joined
Oct 31, 2015
Posts
496
Reaction score
262
Location
Central CA
Ram Year
2015
Engine
5.7L Hemi RCSB Express
On HTHS
Called Shell technical to get the HTHS on pp, pup, & QSUD 5w20 & 5w30
QSUD
5w20 HTHS= 2.6, ASTM D4683
5w30 HTHS = 3.0, ASTM D4683
This data was furnished from Shell internal data base.
3.0 is consistent with the Amsoil HTHS comparison chart showing HTHS = 3.05 for QSUD.

Shell had no internal data for HTHS on PP & PUP
Shell posts technical data for motor oil on www.epc.shell.com

Lubrizoil site has an article on HTHS
Saying this property mostly pertains to maintaining oil film on the piston ring to cylinder wall interface to protect against wear.
The oil must get really hot in this region from friction and combustion temperature.

On all the engines I have built ring and cylinder wear is the most prominate compared to cam & bearings.

Also ask why PUP could only be purchased on Amazon. Reply was retailers are electing not to stock PUP.
 
Last edited:

RodRam

Senior Member
Joined
Oct 13, 2015
Posts
1,069
Reaction score
499
Location
Ga.
Ram Year
2015
Engine
5.7 hemi
PUP 5w-20 with the RP 10-48

Higher oil pressure could be from restricted flow in the engine or going thru a restrictive filter but you really cant compare readings on these trucks some are alike and others not, my truck never reads below 122 oil temp when cold but other guys here of the ones that posted all had different cold readings. several guys have op in the 40's most have in the mid 30's its more than likely from either different sensors for different years or some other anomaly as long as its above 20 I wouldn't worry.
 
Top