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Bone
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« on: October 18, 2012, 07:13:09 AM » |
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Yesterday I changed oil in my 98 Tourer. The engine was warm but it reminded me of a "cold oil change" thread I had read years ago on the GWRRA site.
Does anyone here change the oil cold ?
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sandy
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« Reply #1 on: October 18, 2012, 07:21:43 AM » |
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I've done it but the prefered method is warmed up for a better drain.
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Gavin_Sons
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Posts: 7109
VRCC# 32796
columbus indiana
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« Reply #2 on: October 18, 2012, 07:43:23 AM » |
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Always warm it up first. That goes for my truck and wifes car also. Dosent take as long to drain, and you always get more out when hot.
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old2soon
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« Reply #3 on: October 18, 2012, 07:57:44 AM » |
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Mucho easier when engine and oil are warm. Like the others have said easier and more drained when warm. Let the drain plug go into the drain pan and retrieve the drain plug with a magnet. While it's draining i got get something to drink. RIDE SAFE.
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Today is the tommorow you worried about yesterday. If at first you don't succeed screw it-save it for nite check. 1964 1968 U S Navy. Two cruises off Nam.
VRCCDS0240 2012 GL1800 Gold Wing Motor Trike conversion
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Patrick
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Posts: 15433
VRCC 4474
Largo Florida
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« Reply #4 on: October 18, 2012, 08:21:06 AM » |
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Sure,, it gets changed on cold engines every day.. I don't believe its the right thing to do,, but,, it happens all the time..
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Bone
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« Reply #5 on: October 18, 2012, 08:30:36 AM » |
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One of the GWWRA members measured his drained oil and hot or cold was the same amount. He left the plug out for equal times. The largest concern was did the bottom of the engine drain clean because the engine drains to the "oil pan" when it's hot.
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saddlesore
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« Reply #6 on: October 18, 2012, 09:09:14 AM » |
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Aside from hot or cold I thought the reason to drain it hot was so that the dirt would drain out with the oil. (Just after running the dirt and oil are mixed together.)
On the other hand ,I thought that if the bike has been sitting a while the dirt settles to the bottom of the drain pan and drains right out of the bottom.
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DARE TO BE DIFFERENT
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Sergeant D
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Posts: 204
So your bike has how many cylinders?
Universal City, TX
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« Reply #7 on: October 18, 2012, 10:15:56 AM » |
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Do it all the time, both cold and warm. More importantly is the frequency of the changes.
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"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The windnoise is supposed to hurt your ears, the seat should be hard and riding it should make you crap your pants every now and then."
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CASABROKER
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« Reply #8 on: October 18, 2012, 10:44:56 AM » |
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When cold the oil is all in the bottom of the pan. Ever heard the valves click when cold until the oil get up to the cams. Well there you go it's all in the bottom when cold. Also isn't hot oil thicker than cold????
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #9 on: October 18, 2012, 12:12:45 PM » |
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Cold oil usually is all in the base,, however,, some oil always stays in the 'nooks and crannies' no matter what.. That said, warm oil is all in the base after a few minutes also.. Warm oil is thinner than cold oil.. Some folks have an idea that oil thickens as it warms which is not true.. For instance, a 10W40 oil has a 10 weight viscosity [flow rate] when cold but has a 40 weight shear strength.. It does not thicken when warm to a 40 weight as some will say..
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MP
Member
Posts: 5532
1997 Std Valkyrie and 2001 red/blk I/S w/sidecar
North Dakota
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« Reply #10 on: October 18, 2012, 12:20:40 PM » |
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Also isn't hot oil thicker than cold????
Absolutely not. Get some hot oil, and some cold, of the same type. Try pouring them both thru a small hole. See for yourself which goes thru MUCH faster. MP |
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 "Ridin' with Cycho" |
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Gryphon Rider
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Posts: 5227
2000 Tourer
Calgary, Alberta
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« Reply #11 on: October 18, 2012, 01:01:28 PM » |
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I've changed my oil cold. Because I use synthetic oil and usually ride 7000-9000 km per season, I change the oil at the end of the riding season and put it in hibernation for the winter. Once or twice I have changed it cold by letting it drain overnight. I won't be riding it immediately, so why not, even if draining that long is not really necessary. I'm pretty sure everything that could drain out has drained out.
On the other subject mentioned in passing above, the way multiviscosity oil works is that when cold, it flows like the lower number rating, but when warmed up, it flows like an oil of the higher rating would when warmed up. E.g.: 10W40, when cold, flows like cold 10 weight oil. When hot, 10W40 flows like hot 40 weight oil, which is thinner than cold 10W40 oil, but thicker than hot 10 weight oil.
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JaysGone
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« Reply #12 on: October 19, 2012, 05:04:53 AM » |
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If Im working on several things at the same time.
Ill open it up cold and just give it a longer time to allow it to drain out.
Some old oil may be stuck in there someplace.
But I feel its a small amount over all..
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 1999 Valk - SOLD 2005 Yamaha RoadStar 2010 GoldWing with Motor Trike Kit |
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CajunRider
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« Reply #13 on: October 20, 2012, 06:59:21 PM » |
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(Just after running the dirt and oil are mixed together.)
If this is true, then I would suggest using better oil filters. |
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saddlesore
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« Reply #14 on: October 20, 2012, 08:47:34 PM » |
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(Just after running the dirt and oil are mixed together.)
If this is true, then I would suggest using better oil filters. What oil filter do you suggest? I've never seen clean oil drain out after any amount of miles. |
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CajunRider
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« Reply #15 on: October 21, 2012, 07:31:41 AM » |
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What oil filter do you suggest? I've never seen clean oil drain out after any amount of miles.
Anything other than Fram (which, ironically I have at the moment... so I want to change it ASAP). I've only once had trash in my oil during a change. That was on a dirt bike just after a day of HARD riding and plenty of clutch punishment. (Racing with a few friends on a go-cart track.) Oil gets black, yes... but any amount of grit means your filter is either bad, or so clogged that it's being bypassed. The job of oil is to lubricate... having grit in your oil effectively turns it into sand paper. (Not good for moving parts.) |
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