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post #1 of 20 (permalink) Old 03-24-2011, 04:41 PM Thread Starter
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synthetic oil questions

I here a lot of you guys are running synthetic oil, what I wanna know is does it run better, what brands are good and would it be safe to switch at 213k?

2007 f250 Sd fx4
Arp's, 4"dp 5" straight pipe with 7" stack,S&B intake, no limit cold side, blue spring, 6.4 banjos, gauges, 2.5" leveling kit,sct with gearhead tunes, egr delete and coolant filter warren 175s, powermax
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post #2 of 20 (permalink) Old 03-24-2011, 04:55 PM
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Re: synthetic oil questions

I changed mine over to mobil 1 5w-40 for the winter. i keep mine in a heated garage and it seems to start a lil easier, injectors are a tad quieter. no performance gains are noticed, throttle response the same. When it sat outside in the cold that 5 weight makes it alot happier when starting. hope this helps.

95 F-250 plow/work truck, Meyer 7.5 ft plow, lift gate, cat delete, straight pipe, fact. no A/C, CCV Mod, Tymar intake, Diesel Site trans filter, SD tensioner
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post #3 of 20 (permalink) Old 03-24-2011, 05:25 PM Thread Starter
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Re: synthetic oil questions

I live in oregon I see cold weather but not offten, just trying to decide if its worth the extra money

2007 f250 Sd fx4
Arp's, 4"dp 5" straight pipe with 7" stack,S&B intake, no limit cold side, blue spring, 6.4 banjos, gauges, 2.5" leveling kit,sct with gearhead tunes, egr delete and coolant filter warren 175s, powermax
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post #4 of 20 (permalink) Old 03-24-2011, 05:36 PM
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Re: synthetic oil questions

It is worth the money.. My trucks love it! And you'll be alright switching over at that mileage.

2000 F-250, RCLB, Auto!!
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post #5 of 20 (permalink) Old 03-24-2011, 07:28 PM Thread Starter
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Re: synthetic oil questions

Okay think I'm gonna give it a shot

2007 f250 Sd fx4
Arp's, 4"dp 5" straight pipe with 7" stack,S&B intake, no limit cold side, blue spring, 6.4 banjos, gauges, 2.5" leveling kit,sct with gearhead tunes, egr delete and coolant filter warren 175s, powermax
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post #6 of 20 (permalink) Old 03-24-2011, 07:58 PM
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Re: synthetic oil questions

Yeah you can switch back and forth at will. HEUI injectors like synthetic oil!

2002 F-350 ECLB SRW 7.3 4R100
6637 203* t-stat 08 diff cover Stancor HPX 6.0 trans cooler, Zone offroad leveling kit, Western UM 8'6" plow

Sold: 2004.5 Ram 2500 w/ 5.9 CTD, Reg Cab 48re
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post #7 of 20 (permalink) Old 03-24-2011, 08:35 PM
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Re: synthetic oil questions

I've been thinkin about doing the same. Does a person need to run a semisynthetic between changes? I have heard that synthetic oil and mineral oil don't like to mix.

97 f250, ZF-5 tranny, 6637, 3" round downpipe 5" exhaust, PHP six position, 6.0 liter I/C, DIY exhaust brake, 05 axle swap, 280HP 551 ft. lbs.
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post #8 of 20 (permalink) Old 03-24-2011, 08:37 PM
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Re: synthetic oil questions

Quote:
Originally Posted by morefuel View Post
I've been thinkin about doing the same. Does a person need to run a semisynthetic between changes? I have heard that synthetic oil and mineral oil don't like to mix.
No they play just fine together.

2002 F-350 ECLB SRW 7.3 4R100
6637 203* t-stat 08 diff cover Stancor HPX 6.0 trans cooler, Zone offroad leveling kit, Western UM 8'6" plow

Sold: 2004.5 Ram 2500 w/ 5.9 CTD, Reg Cab 48re
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post #9 of 20 (permalink) Old 03-24-2011, 09:27 PM
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Re: synthetic oil questions

Valvoline says you can run half conventional and half synthetic if you want, no problems what-so-ever.

1995 F-250 7.3L 5 Speed, 4" Lift, 35" Toyos, Straight Pipe, DIY 6637 Intake, TS Chip with PHP Tunes, Glowshift Gauges
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post #10 of 20 (permalink) Old 03-24-2011, 09:56 PM
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Re: synthetic oil questions

And if your feeling bored suck out the oil in your hpop resivoir and refill it with the good stuff

2000 F-250, RCLB, Auto!!
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