Cold weather cranking speed - BMW Luxury Touring Community
 
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post #1 of 3 Old Dec 10th, 2008, 6:21 pm Thread Starter
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Location: Garland, Texas, USA
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Cold weather cranking speed

I haven't had to crank my 2006 LT in cold weather but only twice. Both times the temperature was at 36 degrees. First time was with a 3 year old OEM battery. It was painfully slow but the bike cranked to my amazement. Moving ahead a couple of weeks... I just put in a fully charged Westco battery and found that this afternoon with the temps in the high 30s, it cranks a little faster but not as fast as what I was expecting. Is this normal for the beast? When it is warm outside, the bike spins over fast and fires easy. I'm sure some of the gang from up in the 'Great White' would have some input on this. What gives? Maybe it's the 15w50 Mobile One??? Looking at the owners manual, that viscosity is still well within the manufacturers range of operation at this temperature.

Jim Whitsitt KC5KM
BMWMOA# 144388
Garland, TX
'06 K1200LT
Magnesium black metallic
'04 Bushtec Roadstar
"Hukt on Fonix rilly werkt fer mee."
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post #2 of 3 Old Dec 10th, 2008, 6:59 pm
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Re: Cold weather cranking speed

Partly a cold battery doesn't perform as well as a warm battery and try pouring some 15W-50 at that temperature. It doesn't flow near as well as it does at 50 degrees.

May try turning the key on and letting sit for a minute or two. The draw for the head lights will help warm the battery and it may crank a little faster.

I run 10W-40 in my K100 and cranks a whole lot easier than the 20W-50 I use in the LT.

Roy

Roy Gregersen

Ride Slow, Ride Fast, Always Ride Safe
85 K100RT sold
02 LTC DOA 9/21/14
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post #3 of 3 Old Dec 10th, 2008, 7:38 pm Thread Starter
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Re: Cold weather cranking speed

Thanks Roy,
That's kinda' what I was thinking. The comparison on your bikes makes sense. My car doesn't seem to crank much slower when cold, but then the oil is much thinner.

Jim Whitsitt KC5KM
BMWMOA# 144388
Garland, TX
'06 K1200LT
Magnesium black metallic
'04 Bushtec Roadstar
"Hukt on Fonix rilly werkt fer mee."
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