Oil on high mi engine? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 6 (permalink) Old 01-25-2013, 11:12 AM Thread Starter
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Oil on high mi engine?

I have 334k mi on my 97 OBS 7.3. The engine has never been rebuilt. I does not smoke or leak....yet. I was wondering if I could switch to synthetic oil with this many miles or should I stay with standard oil? What weights for it too? Here in Iowa it gets frigid in the winter and hotter than crap in the summer so maybe switching weights for seasons???
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post #2 of 6 (permalink) Old 03-28-2013, 05:43 PM
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Re: Oil on high mi engine?

You can synthetics if you want, but it might start leaking, personally I would throw a good 15w40 dino in it and plug it up at night, if it doesnt want to start I would look at glowplugs. Mine start in -10 in northern NV without being plugged up on 15w40 Valvo

02 250 CCLB, 6 spd, PHP Phoenix, ISSPROs, AFE/6637 intake, 4" DE straight exhaust, WW, coolant filter with ELC, AIH delete, ebpv delete, bellowed uppies, 4" on 35's and racelines
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post #3 of 6 (permalink) Old 03-28-2013, 06:27 PM
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Re: Oil on high mi engine?

I have used 10-30 SD in the winter but as soon as it gets above 36f it likes to make the oil vanish.

96 with 320,000, Idm mod,
Tc mod, van turbo, 200/30 rosewood,
T 500 hpop, Dy 3" down pipe,
glowshift gauges, D60kp swap, custom track arms,
steering wheel swap, 6637 mod, Hydra chip, WW2,
calf fuel spring and BB mod
6.0 fan, cooler,
Pmf 2.25 rsk sd springs

78 f-150 turbo big block
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post #4 of 6 (permalink) Old 03-28-2013, 07:10 PM
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Re: Oil on high mi engine?

I have about 360000 on mine and has had dino oil the entire time!!! It must be ok...Just saying!!

2001 F250 CCLB, PHP Hydra, 6637, MBRP 4" exhaust and rear air bags

97' F250 ECLB, 7.3, Baby Swamps, Hydra w/swamps tunes, 6637, 3"dp 4" straight, Dana 60, 2.25 PMF RSK, Built Trans & Cooler, DIY efuel
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post #5 of 6 (permalink) Old 03-29-2013, 12:46 AM
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Re: Oil on high mi engine?

On the 10-30 SD oil I could start the truck at -15f with out plugging it in. The is on injectors with 300,000 miles. Today I just switched the rotella 15w-40 for the summer.

96 with 320,000, Idm mod,
Tc mod, van turbo, 200/30 rosewood,
T 500 hpop, Dy 3" down pipe,
glowshift gauges, D60kp swap, custom track arms,
steering wheel swap, 6637 mod, Hydra chip, WW2,
calf fuel spring and BB mod
6.0 fan, cooler,
Pmf 2.25 rsk sd springs

78 f-150 turbo big block
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post #6 of 6 (permalink) Old 03-30-2013, 12:51 PM
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Re: Oil on high mi engine?

My 01 had 307000 miles when I switched to synthetic t6 5-40 and it loves it, starts much better and the engine is not as noisy. Its only been a few thousand miles but so far no new leaks and it hasnt used a drop of oil.

2001 f250 4x4
05 front end conversion,6637 intake, mbrp 4 inch turbo back, leveling kit.
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