2008 F250 6.4L Oil

[Mike_Dankbar]

Hi guys,

First post here. I have been doing a lot of reading here, and on other turbo diesel related sites about oils. I have a 2008 F250 with the 6.4 in it. The truck has about 75,000 miles on it and I have always used Rotella T6 5w40 with a Motorcraft filter. At 14-15 quarts, this is starting to get pretty expensive and I've been curios to see if I can achieve the same engine protection with a good 15w40.

How I use the truck: The truck sits M-F. I drive my trusty old Ford Ranger to work daily and use the truck on the weekends. I typically drive about 5,000-7,000 miles a year, and change the oil every six months regardless of mileage (thought this was the way to do it, due to age and possible moisture). I live in Northern, CA. So as far as climate goes, I rarely see any freezing temperatures, but do see some 110* summer days.

Just looking for some more knowledge and experience to see if I can get away with a Delo 15w40 or similar and still have the same engine protection as with the Rotella T6.

Thanks guys, I look forward to your insightful responses.

 

[CT8]

T6 is better for below freezing starts. Delo 15w40 can't be beat, Mobil 1300 is there as well.

 

[Mike_Dankbar]

Is Delo 15w40 going to provide the same protection with my 6 month, 3,000 mile OCI?

 

[beanoil]

Good grief, no wonder you think it's expensive. 3k OCI is overkill, you can easily run to 5k. Add a bypass with the savings, and probably get to 10k.
Valvoline Premium Blue is on sale at Menards right now. Go stock up for less than 11 a gallon, and do an oil analysis at 5k. Let them tell you how far you can go.

 

[Mike_Dankbar]

The only motive behind the 3k OCI is the length of time the oil is in the truck. I figured every 6 months was needed. But after some more reading recently, seems moisture and time isn't such a concern.

 

[Jim_Truett]

Is the emissions system fully intact on your truck?

 

[Mike_Dankbar]

Ah forgot to mention that. 100% removed.

 

[Jim_Truett]

Originally Posted By: Mike_Dankbar
Ah forgot to mention that. 100% removed.


I do 5k a year on Delvac 1300 that is $46 for four gallons. Add $20 for a Motorcraft filter. I get it analyzed every change and the TBN is over 6. No more than .5% fuel.

If you keep the Rotella have a sample analyzed at 5k. Change at least every year, if not two. I bet you could push the Rotella to 7.5 or 10k if you are not seeing fuel dilution or high insolubles on the sample report.

 

[The motor guy]

Just run a 15w40 diesel oil in it. I'd change it every 10,000. That's what it calls for in the manual, although I do believe they changed that because 10,000 was too long for stock trucks. I buy delo 400 15w40LE at walmart for like $11.57 a gallon. I like it because it's cheap and it has a good amount of moly.

 

[Mike_Dankbar]

That's the way I'm leaning- Delo 15w40 and a MC filter and call it done.

Do you worry about the cold start capabilities when your hovering around 30* ambient? Or is 15w40 more than adequate with those ambient tempatures?

 

[donnyj08]

Originally Posted By: Mike_Dankbar
That's the way I'm leaning- Delo 15w40 and a MC filter and call it done.

Do you worry about the cold start capabilities when your hovering around 30* ambient? Or is 15w40 more than adequate with those ambient tempatures?



15w40 is fine for California. If you're expecting a cold night you could always plug in. Delvac, Delo, Rotella are all great and capable of doing a one year change at only 6-7k a year driven. My choice would be Delvac. My uncle has a F450 6.4l and he Runs 15w40 year round in Indiana.

 

[Garak]

Originally Posted By: Mike_Dankbar
Is Delo 15w40 going to provide the same protection with my 6 month, 3,000 mile OCI?

Is that the OEM recommended interval? If so, how long did Ford hang onto that interval? I thought it was a bit OCD in the late 1990s diesels, let alone ten years after!

 

[Bighorn2500]

This link may help you decide.

Delo is hard to beat especially for the price.

http://www.parmanenergy.com/sites/defaul...0-%20102912.pdf

 

[Mike_Dankbar]

Originally Posted By: Bighorn2500
This link may help you decide.

Delo is hard to beat especially for the price.

http://www.parmanenergy.com/sites/defaul...0-%20102912.pdf



Outstanding info. Delo looks like a great choice, and much easier on the wallet over the t6 I have been running. I will give it a shot.

Thanks for all the info

 

[DoubleWasp]

Delo really kicks a lot of other oils straight in the jewels. Beat ESP in the PDSC, CMOT, and LPTL 0201K. Wow.

Just what is going on at Chevron? Did they capture a crashed UFO or something?

 

[Bighorn2500]

Originally Posted By: DoubleWasp
Delo really kicks a lot of other oils straight in the jewels. Beat ESP in the PDSC, CMOT, and LPTL 0201K. Wow.

Just what is going on at Chevron? Did they capture a crashed UFO or something?

Just a really good additive pack (see link below for VOA analysis), and they price them selves correctly in the market place. The product speaks for itself in VOA & UOA.

http://www.pqiamerica.com/June 2014/consolidated HDEO 2015.html

Healthy dose of Zinc, Moly, Boron, and detergents.

 

[Mike_Dankbar]

Are you guys running 15w40 through the winter months? Some nights we may see down to 25F where I am at and was still questioning the thicker oil at those ambient temps.

 

[Bighorn2500]

You'll be fine in those temperatures with 15W40 Delo, its when you're down around zero or below that concerns me personally.

During the winter I run 5W40 (Delo or Mobil 1 Delvac ESP) due to Michigan temp's getting down to zero or below sometimes. I'm not usually plugged in either so the 5W40 helps, saw a (-19) morning in Feb. and fired right up.

 

[Mike_Dankbar]

Drained the t6 this evening and filled with Delo 15w40. Only $44 OTD @ Wally World for oil. Not too bad!

Truck runs and sounds exactly the same. Thanks again for all the info

 

[Bzab32]

With all the emissions gone you can run out the OCIs without the fear of oil dilution. I run 15-40 in the summer and 10-30 or 5-40 rotella in the winter. We routinely get to -20 degrees or lower and it starts fine. Just make sure to stick to the motorcraft filters and buy the oil when you can get a good rebate. Mine seem to work out to 7.5K miles twice a year.