oil mark on dipstick same hot or cold

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Aug 30, 2015 | 01:48 PM

baggerthree

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6th Gear

Joined: Aug 2015

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From: texas

oil mark on dipstick same hot or cold

ok i am confused...the oil mark is the same place on the dipstick whether the bike is hot or cold. bout 3/16" from "full hot on jiffy stand" line...when bike is cold the oil mark is really no different what gives? 2014 road king 5900 miles

Aug 30, 2015 | 02:39 PM

wenterkin

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Joined: Aug 2013

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From: Pensacola, FL

Modern motor oils do not expand very much when heated. Assuming you allowed the oil temp to reach 180, it will most likely expand by less than 4%. If you go up to the 250 degree range, you may get as much as a 6% expansion. Based on 4.5 quarts of oil in you crankcase when cold, at most it will expand 1/4 quart. Moral of story; hot or cold, as long as in the "okay" range, you are good.

Aug 30, 2015 | 02:47 PM

ZROADSTER

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Joined: Jul 2011

Posts: 109

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From: louisiana

Question ?

With modern high performance synthetic motor oil .......does it not expand as much as a high performance DINO oil ?

Aug 30, 2015 | 06:41 PM

p51bombay

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Joined: Jun 2010

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From: Blaine, WA

What are you looking at? There's a mark for full hot on the jiffy stand or upright - none for cold. You shouldn't be using the FULL mark anyway.

Aug 30, 2015 | 07:19 PM

ZROADSTER

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Joined: Jul 2011

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From: louisiana

Cold & on the kick-stand at the half way mark . Then the same when fully warmed up & hot the AMSOIL still measures at the half-way mark on the stick . So what's up with that ? Obviously synthetic does not expand the way DINO oil does .
Just saying .

Last edited by ZROADSTER; Aug 31, 2015 at 06:56 AM.

Aug 30, 2015 | 07:28 PM

tesnevo

Club Member

Joined: Aug 2014

Posts: 917

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From: Nashville, TN

Quote:

Originally Posted by baggerthree

Manual generally will state that cold level shouldn't be more than halfway (in the middle) due to hot oil increasing column. That's what I've always gone by. Also checking on jiffy stand versus upright will generally merit the same results on our bikes.