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[GMCnet] Synthetic Oils. How many miles are guy's running between changes? [message #281869]

Sat, 11 July 2015 09:51

BobDunahugh

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Registered: October 2010
Location: Cedar Rapids, IA

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The major benefits that I hear about synthetic oils. Is it can handle more heat. And can be left in for a lot more miles. I have reasons that I don't use it. Am I missing something?BobDunahugh
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Re: [GMCnet] Synthetic Oils. How many miles are guy's running between changes? [message #281870 is a reply to message #281869]

Sat, 11 July 2015 10:57

appie

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Registered: April 2013
Location: denmark

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As recommended by Dick Paterson , who build my engine, I am using full syntetic 10-30. Just changed after 5000 Ml wi 1 year

Appie eleganza 76 "Olga" now sadly sold 6 wheel discbrake Quadrabags Springfield stage 2 462 olds Manny tranny ( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html Fulltiming in Europe july 2014 til july 2016 Denmark

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Re: [GMCnet] Synthetic Oils. How many miles are guy's running between changes? [message #281875 is a reply to message #281870]

Sat, 11 July 2015 13:50

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

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I am running M1 15-50 and like to change it out at about 5Kmi - just because. Last year, I lost track and ran for 8200. The report came back that there was nothing really wrong with the oil. I might push it farther, but they are also reporting sodium and potassium in the oil that could be an internal coolant leak, so that is my limiter.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: [GMCnet] Synthetic Oils. How many miles are guy's running between changes? [message #281878 is a reply to message #281869]

Sat, 11 July 2015 17:23

JohnL455

Messages: 4447
Registered: October 2006
Location: Woodstock, IL

Karma: 12

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I don't go longer intervals with synth. 5 quarts of oil can suspend X amount of combustion byproducts before they are re deposited. Don't see how synth can do that any better than dino. Though the "oil" part remains less altered over time from thermal breakdown, the additive package still gets exhausted. I does give getter protection pulling long grades (heat) I really think that is when you need it and it pays off. Cheaper than an engine.

John Lebetski
Woodstock, IL
77 Eleganza II

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Re: [GMCnet] Synthetic Oils. How many miles are guy's running between changes? [message #281881 is a reply to message #281878]

Sat, 11 July 2015 18:29

jimk

Messages: 6734
Registered: July 2006
Location: Belmont, CA

Karma: 9

Senior Member

One advantage of the Synthetic is that it has less tendency to get acidic.
Oil does pick up dirt and other particulates so I run it about twice as
long as reguler.

On Sat, Jul 11, 2015 at 3:23 PM, John R. Lebetski
wrote:

> I don't go longer intervals with synth. 5 quarts of oil can suspend X
> amount of combustion byproducts before they are re deposited. Don't see how
> synth can do that any better than dino. Though the "oil" part remains less
> altered over time from thermal breakdown, the additive package still gets
> exhausted. I does give getter protection pulling long grades (heat) I
> really think that is when you need it and it pays off. Cheaper than an
> engine.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
> Source America First
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>

--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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