Anyone using 15w40 oil ?

[wjamesm]

Just wondering if anyone is using the heaver oil . I know the manual says 10w30 and 5w40 . The reason i am asking is that i have about 10 gallons of Schaffers 7000 15w40 left from when i had my 6.4 .I am wonder if i can use it in this truck primarily during the summer .

 

[Kxc]

I run 15w40 year around here in NJ


Sent from my iPhone using Tapatalk

 

[jimdawg185]

I have our 8700 non extended drain 15-40 in my 17 now. Cold starts were fantastic at 0, will have analysis at 7500 mikes.


Sent from my iPhone using Tapatalk

 

[wjamesm]

It seams alot of people like the 5w40 from what i read .

 

[lincolnlocker]

Just wondering if anyone is using the heaver oil . I know the manual says 10w30 and 5w40 . The reason i am asking is that i have about 10 gallons of Schaffers 7000 15w40 left from when i had my 6.4 .I am wonder if i can use it in this truck primarily during the summer .

run it.. won't hurt it if only for a couple oci. prolly wont hurt it at all regardless... the thinner oils are more for fuel mileage..

live life full throttle

god bless america and the farmer who feeds your fat ass

 

[dboat]

I agree with the others, given the season, you will be fine, actually the 40 weight will be good for summer

Sent from my P00I using Tapatalk

 

[jimdawg185]

It seams alot of people like the 5w40 from what i read .

I sell our 8854 5-40 to hundreds of 6.7 owners a month. Number one reason why is that's what it says for almost all years in the manual for severe duty. And, because the 8854 has unbelievable cold flow and a great HTHS, I can be very confident that anywhere that Customer goes he won't have any trouble at all. Now, I don't think anyone would have trouble with a high quality 15-40 either. My truck didn't seem to mind it at 0 cold start up. But in the book from Ford it gives you a 20 degree limit. That's why 5-40 is my first recommendation. But in the long run 15-40 will give you more film strength in theory. But it should never cause any issues. At operating temp they are only a couple of cSt apart.


Sent from my iPhone using Tapatalk

 

[CATDiezel]

I sell our 8854 5-40 to hundreds of 6.7 owners a month. Number one reason why is that's what it says for almost all years in the manual for severe duty. And, because the 8854 has unbelievable cold flow and a great HTHS, I can be very confident that anywhere that Customer goes he won't have any trouble at all. Now, I don't think anyone would have trouble with a high quality 15-40 either. My truck didn't seem to mind it at 0 cold start up. But in the book from Ford it gives you a 20 degree limit. That's why 5-40 is my first recommendation. But in the long run 15-40 will give you more film strength in theory. But it should never cause any issues. At operating temp they are only a couple of cSt apart.


Sent from my iPhone using Tapatalk

15w40 in all my trucks here too... even the push mower!

Southern living and tow hot and heavy when I do. Oil samples indicate great results.

 

[wjamesm]

That's what i was hoping for that it would be fine for at-least the summer . After it's gone i'll be dealing with Jim for my oil from now on .

 

[jimdawg185]

15w40 in all my trucks here too... even the push mower!



Southern living and tow hot and heavy when I do. Oil samples indicate great results.

Yeah buddy!!! Honestly, a good 1540 will be just fine in cold climates too. But you know how careful I need to be with spec on my side of things.


Sent from my iPhone using Tapatalk

 

[gnxtc2]

Question on the 15w40....I put in Rotella 15w40 in my race car (yes I know Mr. Lincolnlocker). After driving, it was full of tiny bubbles on the dipstick. A call to Shell engineers was made. The engineer said that the oil is not recommended for gassers (ran at high rpm) as the oil was developed for low rpm of a diesel.

The oil pump is a belt driven external one. The pump (wet sump) picks the oil up externally from the pan. Goes to through the filter then into the motor. You would think the filter would get rid of the tiny bubbles. But I guess the bubbles are happening inside the motor after the filter.

Switched over to Brad Penn, no more bubbles.

Billy T.
[email protected]

 

[lincolnlocker]

Question on the 15w40....I put in Rotella 15w40 in my race car (yes I know Mr. Lincolnlocker). After driving, it was full of tiny bubbles on the dipstick. A call to Shell engineers was made. The engineer said that the oil is not recommended for gassers (ran at high rpm) as the oil was developed for low rpm of a diesel.

The oil pump is a belt driven external one. The pump (wet sump) picks the oil up externally from the pan. Goes to through the filter then into the motor. You would think the filter would get rid of the tiny bubbles. But I guess the bubbles are happening inside the motor after the filter.

Switched over to Brad Penn, no more bubbles.

Billy T.
[email protected]

I know a number of drag racers back home that run the 15w40 rochitta in their drag cars because it is designed for high impact bearing protection. the rpm factor is the only thing it isn't good with and the airation is chit in anything its in.. but they swear by it. they also change the oil just about every weekend they race though too.. I have been running diesel rated oils in most of the gas vehicles I have ever owned as long as rpm is kept low it won't hurt.. I have over 100k miles in my girlfriends 2003 exploder with 5w40 mobil tdt oil.. it stays brown/tan throughout the oci.

live life full throttle

god bless america and the farmer who feeds your fat ass

 

[jimdawg185]

Question on the 15w40....I put in Rotella 15w40 in my race car (yes I know Mr. Lincolnlocker). After driving, it was full of tiny bubbles on the dipstick. A call to Shell engineers was made. The engineer said that the oil is not recommended for gassers (ran at high rpm) as the oil was developed for low rpm of a diesel.

The oil pump is a belt driven external one. The pump (wet sump) picks the oil up externally from the pan. Goes to through the filter then into the motor. You would think the filter would get rid of the tiny bubbles. But I guess the bubbles are happening inside the motor after the filter.

Switched over to Brad Penn, no more bubbles.

Billy T.
[email protected]

If you ever call a major brand about oil you will always get the don't use diesel in gas or vice versa. They can't tell you anything different. I'm very good friends with lots of Shell engineers. They could loose their jobs if they told you what they really thought. And those guys have very Cush jobs. They will tell you anything they are told to say to keep them.


Sent from my iPhone using Tapatalk

 

[PDT1081]

Question on the 15w40....I put in Rotella 15w40 in my race car (yes I know Mr. Lincolnlocker). After driving, it was full of tiny bubbles on the dipstick. A call to Shell engineers was made. The engineer said that the oil is not recommended for gassers (ran at high rpm) as the oil was developed for low rpm of a diesel.

The oil pump is a belt driven external one. The pump (wet sump) picks the oil up externally from the pan. Goes to through the filter then into the motor. You would think the filter would get rid of the tiny bubbles. But I guess the bubbles are happening inside the motor after the filter.

Switched over to Brad Penn, no more bubbles.

Billy T.
[email protected]

Off topic, a call to Koester's or Miner Brother's Engines would answer a lot of your questions concerning Rotella/Shell oils in high performance gas/alcohol engines.

If you ever call a major brand about oil you will always get the don't use diesel in gas or vice versa. They can't tell you anything different. I'm very good friends with lots of Shell engineers. They could loose their jobs if they told you what they really thought. And those guys have very Cush jobs. They will tell you anything they are told to say to keep them.


Sent from my iPhone using Tapatalk

 

[95cobby]

I run it here in Houston only because temps rarely fall below 30 degrees and my daily commute is a lot of stop and go. Was thinking of switching to 10w30 but haven't made up my mind yet


Sent from my iPhone using Tapatalk