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Hard time finding my favorite oil

seven30

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I have a couple data points that would counter this statement. I have seen this on multiple machines. Mine had 26K. I have switched to a mix of 5W-20 and 5w-30

0225221735.jpg
Ive been alternating between Quaker State Full Synthetic and what ever the dealer uses for my three free changes which the last of was just done.

I bought six pack of filters too and a spare cap and drain plug JIC.

Wish I could find some equivalent info on gear oils and ATF-4
 

545moose

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Maximus Gladius

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Ive been alternating between Quaker State Full Synthetic and what ever the dealer uses for my three free changes which the last of was just done.

I bought six pack of filters too and a spare cap and drain plug JIC.

Wish I could find some equivalent info on gear oils and ATF-4
You can contact Amsoil for their data sheets which contain code compliant #'s for your applications.

AMSOIL INC.
ADDRESS: 1 Amsoil Center, Superior, WI 54880
E-MAIL: [email protected]
PHONE: 715-399-6304
FAX: 715-399-6531
 

Maximus Gladius

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DanW

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Why is it the flash point on the Lucas Oil 0-20W is so much higher than others?
https://lucasoil.com/pdf/TDS_SAE-0W-20-MO.pdf
It might have some PAO in it. PAO has a higher flash point than Group III and significantly higher than GTL or conventional base oils. I'm not sure if it actually does or doesn't, but that could certainly be a possible explanation.
 

DanW

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I looked up AMSOIL'S flash point on the 0/20 Sig Series, shows 428F. Lucus shows 430F. I guess if your oil is getting that hot and flashing at either 428 or 430, your engine is in trouble.
There can be hot spots in an engine, but yeah, that kind of temp would be trouble. Pennzoil's lower flash point is still adequate and well above what the oil should see in a healthy engine.

The reason I look for a high flash point is in case I lose coolant or get into a situation where the temp spikes in the hopes to limit damage. I like knowing the capacity is there in the unlikely event it is needed.
 

cb4017

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I have a couple data points that would counter this statement. I have seen this on multiple machines. Mine had 26K. I have switched to a mix of 5W-20 and 5w-30

0225221735.jpg
Not sure what statement you're countering. Compared to a turbocharged DI engine the Pentastar is easy on oil.

Roller bearing failure in a cam follower is a different issue.
 

DAVECS1

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Not sure what statement you're countering. Compared to a turbocharged DI engine the Pentastar is easy on oil.

Roller bearing failure in a cam follower is a different issue.
It is not a roller bearing failure. It is a viscosity failure. Fails to pressurise the variable valve lift passeges correctly and the high lift cam is actuating when the low lift cam is suppose to be. The rocker lobes have inconsistent contact and it generates a fair bit of heat, ulitmately burning up the oil interface and grinding down the cam and the rocker. So yeah, I consider the 3.6L to be, hard on oil. The more I think about it. The other issue is, the high lift cam is not a roller cam but extremely similar to a flat tappet interface, which probably requires high pressure additives like found in most race oils. Post more pictures when I am not flying.

Jeep Gladiator Hard time finding my favorite oil 0225221847a
 
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PyrPatriot

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It is not a roller bearing failure. It is a viscosity failure. Fails to pressurise the variable valve lift passeges correctly and the high lift cam is actuating when the low lift cam is suppose to be. The rocker lobes have inconsistent contact and it generates a fair bit of heat, ulitmately burning up the oil interface and grinding down the cam and the rocker. So yeah, I consider the 3.6L to be, hard on oil. The more I think about it. The other issue is, the high lift cam is not a roller cam but extremely similar to a flat tappet interface, which probably requires high pressure additives like found in most race oils. Post more pictures when I am not flying.

0225221847a.jpg
Might be worth looking into changing after the factory 60k mile warranty is over?
 

seven30

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How is it not a ball bearing test? Your link provides the following.
" During a four ball wear test a rotating steel ball is pressed against three balls firmly held together and immersed in lubricant under test. " This would be a different stress than sliding and movement of cams.
Go look at test and machine that does it. The fact that the wear elements are spherical does not mean is a ball bearing.
 

seven30

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It is not a roller bearing failure. It is a viscosity failure. Fails to pressurise the variable valve lift passeges correctly and the high lift cam is actuating when the low lift cam is suppose to be. The rocker lobes have inconsistent contact and it generates a fair bit of heat, ulitmately burning up the oil interface and grinding down the cam and the rocker. So yeah, I consider the 3.6L to be, hard on oil. The more I think about it. The other issue is, the high lift cam is not a roller cam but extremely similar to a flat tappet interface, which probably requires high pressure additives like found in most race oils. Post more pictures when I am not flying.

0225221847a.jpg
How old was that oil? Ive seen gummed up lifters due to lack of oil changes. Isnt there also and oil pressure control valve that can fail on the Pentastar ?
 

DAVECS1

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Oil was changed every 5K with Penzoil ultra platinum 0W-20
 

seven30

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How is it not a ball bearing test? Your link provides the following.
" During a four ball wear test a rotating steel ball is pressed against three balls firmly held together and immersed in lubricant under test. " This would be a different stress than sliding and movement of cams.
Its pure sliding to test film strength. Three spheres are held stationary under the medium to be tested. The forth sphere is lowered onto the center and rotated at a specific rate and pressure and time. Then the contact point wear is measured.
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