what kind of oil are you running and why

[BLKF250]

just curious my mechanic wants me to run 10W30 just wanted to see if anyone runnin that asnd what brand i like mobil 1 or rolleta just want to get other peoples thoughts on this

[jac97psd]

15W-40 Rotella.

[UPTHECREEK]

15-40 Rotella find it at any Walmart , and they have the 6.4 Motorcraft oil filters...

[DSL_PWR]

Ford Motorcraft oil. It's what they recommend.

[usnavyad]

Rotella 15w-40 oil change at 5k cause I have ocd and I'm like that will never run anything else

[08F250TX]

You should stick to the recommended weight.

I run Mobil 1 Turbo Diesel Truck 5W40 in my truck.

[diesilingdave]

I run either shell rotella t or valvoline premium blue in 15w40. I go between these two whichever I can find on sale before next oil change. I buy the oil filter at walmart, original motorcraft filter for around 18.50. I usually change oil and filter between 4k and 5k buy closer to 4k. Sometimes sooner than that since it it so easy to change the oil on these trucks.

[Arco3580]

Around here most of the mechanics I work with say Delo 15W40. I use only Motorcraft filters on a 5K foil change. I am eager to see what the Blackstone analysis send back on that sample. Maybe, an extended drain in the making. I am thinking about doing the same with Rotella next time around.

?? Is it advisable to run premium 15W40 in cold climates with a block heater option. We get into area that are sub zero that have access to power. It would be nice to stick with one oil with out changing to the synthetics just for 3-4 month is the winter.
Thanks

2010 F350 6.4 CC LB Lariat 3.55 LS nicely decorated





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[Arco3580]

Around here most of the mechanics I work with say Delo 15W40. I use only Motorcraft filters on a 5K foil change. I am eager to see what the Blackstone analysis send back on that sample. Maybe, an extended drain in the making. I am thinking about doing the same with Rotella next time around.

?? Is it advisable to run premium 15W40 in cold climates with a block heater option. We get into area that are sub zero that have access to power. It would be nice to stick with one oil with out changing to the synthetics just for 3-4 month is the winter.
Thanks

2010 F350 6.4 CC LB Lariat 3.55 LS nicely decorated





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[dieselburner21]

A lot of guys run the 5w40 rotella year round that is what I'm going with next, been there done that with the 15w40 in the winter