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post #1 of 13 Old 02-08-2012, 10:42 AM Thread Starter
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oil question

Last time i changed my oil i used the valvoline extreme blue 5W-40. I was thinking of switching to rotella T6 5W-40 this time because it is cheaper than the extreme blue. I have 2 quarts of the extreme blue left from the last oil change. Do you think it would be ok if i buy 3 gallons of T6 and use the other 2 quarts of the extreme blue or should i not mix them? Thanks for any advice

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #2 of 13 Old 02-08-2012, 11:03 AM
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im no expert on the topic, but if I was driving my 7.3 still sure I would mix all kinds of stuff, but, on my 6.4 I would personally get the extra gallon, I still have a 1/2 gallon of rotella T6 sitting in my garage from my last oil change since I switched to Amsoil.

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post #3 of 13 Old 02-08-2012, 11:10 AM
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It probably wouldn't do anything but I would just buy the extra gallon.

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post #4 of 13 Old 02-08-2012, 01:09 PM Thread Starter
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Thanks for the info guys. I will buy the extra gallon. I dont mind buying the extra gallon it just sucks to have oil lying around that i am not using.

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #5 of 13 Old 02-08-2012, 01:19 PM
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Quote:
Originally Posted by 04hdfatboy View Post
Thanks for the info guys. I will buy the extra gallon. I dont mind buying the extra gallon it just sucks to have oil lying around that i am not using.
just do what i do, change the oil on the lawn mower

Casey

08' F-350 King Ranch 4x4 CCSB
H&S Mini Maxx 300 HD
5" Straight Pipe to 7" rolled tip
AFE S2 PDS
ARP Head Studs
FloPro EGR Delete with Intake Elbow
FloPro CAC pipe
Rebuilt beefed up OEM Up pipes
Deisel Site Coolant Filter
Firestone RideRite Airbags
Leveled
35X12.50R20 ProComp Xtreme A/T
Ranch Hand Front and Rear Replacement Bumpers

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post #6 of 13 Old 02-08-2012, 03:02 PM
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How come you are switching to the shell? I've been using the Valvoline but in 15-40. I was going to go to the 5-40 next change.


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post #7 of 13 Old 02-08-2012, 03:06 PM Thread Starter
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How come you are switching to the shell? I've been using the Valvoline but in 15-40. I was going to go to the 5-40 next change.


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Well i have tried the valvoline 15W-40 and the extreme 5W-40. I switched to the 5W-40 for the winter. I think i want to stick with synthetic but the Rotella T6 is quite a bit cheaper than the valvoline extreme blue 5W-40

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #8 of 13 Old 02-08-2012, 03:22 PM
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ahh, makes sense. I was thinking there was something you didn't like about it.
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post #9 of 13 Old 02-08-2012, 03:23 PM Thread Starter
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Na just the rotella synthetic is cheaper lol

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #10 of 13 Old 02-08-2012, 07:39 PM
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Go right ahead and mix the two new oils. You have a fair bit of the prior oil remaining between changes no matter how long you let it drain.

One of the requirements for SAE/API ratings is that oils be compatible when mixed.

2008 F250 Lariat CC 4x4 white/gold
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