Engine oil temp question, '08 with mini maxx - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 10-16-2012, 03:01 PM Thread Starter
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Engine oil temp question, '08 with mini maxx

Ever since I put my mini maxx on (around a year ago) my engine oil temp sits around the 210-220* area. My coolant temp is always around 195-205* and is around 15-20* difference most of the time. This is all unloaded on flat road cruising and under acceleration, so I'm not working the truck hard at all.

Would this be a sign of an oil cooler going bad? It only has 75K on it.

Travis

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post #2 of 8 Old 10-16-2012, 03:08 PM
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If the difference is 15-20 then that's a good possibility of it being plugged.

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post #3 of 8 Old 10-16-2012, 03:38 PM
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I thought the difference was supposed to be about 15 degrees and if it went much more than that it was a sign of the cooler getting plugged.
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post #4 of 8 Old 10-16-2012, 03:56 PM
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Typically unloaded 4-6 is normal. 6-9 or so is what I get towing.

08 F350 JOB 1
H&S MINI MAXX HD300 W/S1M
SINISTER EGR/COOLER DELETE
6000K BEAMERS HID HEAD & FOGLIGHTS
KMC XD WHEELS W/NITTO TRAIL GRAPPLERS
2.5" LEVELING KIT
DIESELSITE COOLANT FILTER
ROTELLA EC-1 RATED COOLANT
5" DP BACK FLO-PRO EXHAUST
FLO-PRO CAC PIPE & INTAKE ELBOW
CCV MOD
AIR LIFT 5000LB AIR BAGS W/ONBOARD COMPRESSOR
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post #5 of 8 Old 10-16-2012, 05:30 PM
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Quote:
Originally Posted by RDUB View Post
I thought the difference was supposed to be about 15 degrees and if it went much more than that it was a sign of the cooler getting plugged.

Thats what I go by, I would be looking into your oil cooler.

2008 F250 Lariat 4 Door Crew Cab, H&S Minn Maxx S&B intake, sinister coolent filter
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post #6 of 8 Old 10-16-2012, 10:27 PM
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try a coolant flush with restore and restore plus or mc vc9. oil temp is a bit high. a flush could save your cooler.

08 F250 KR
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post #7 of 8 Old 10-17-2012, 05:37 AM Thread Starter
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Thanks for the reply guys. I had my radiator replaced along with a coolant flush about 10K ago or so which was right before I deleted and tuned it. Could it be getting clogged again already? Is there any additive I can put in the coolant to clean the cooler up and flush it soon?

Travis

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post #8 of 8 Old 10-17-2012, 06:31 AM
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Yep it sounds like a clogged oil cooler. I would do a flush with restore and restore plus. It may no unclog your oil cooler but hopefully clean your system well before you replace the oil cooler. I would also look into a coolant filter.

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