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#1339907 - 01/12/09 10:32 PM 15w-40 Delo 400 temp range ?
dave95sps Offline

Registered: 12/04/08
Posts: 29
Loc: Chesterfield County, Virginia
Hi everyone and happy new year !

I changed over to Chevron Delo 400 LE, 15w-40 recently. Wondering how cold I can safely ride in. The temps here have been down in the 30's at night. I have a 2008 Goldwing. What would you suggest the lowest temp should be for me to safely ride ?

Thanks, Dave

#1339920 - 01/12/09 10:42 PM Re: 15w-40 Delo 400 temp range ? [Re: dave95sps]
Drew99GT Offline

Registered: 10/11/02
Posts: 21278
Loc: Colorado Springs
By definition of the SAE testing for cold cranking and cold pumping, 15w-xx should be safe to -4F in an unaided cold start. A more realistic limit IMO is probably around 10F. 30F is no problem whatsoever.

#1339941 - 01/12/09 11:02 PM Re: 15w-40 Delo 400 temp range ? [Re: Drew99GT]
Audi Junkie Offline

Registered: 11/03/02
Posts: 11247
Loc: PA
To start my bike down to +20f, I went with Havoline DS 10w-40.
2008 Opel Astra 1.8 VVT 5M
2010 VW Tiguan 2.0 TSI 6M
(APR Powered)

#1340060 - 01/13/09 04:18 AM Re: 15w-40 Delo 400 temp range ? [Re: Audi Junkie]
dnewton3 Offline

Registered: 05/14/07
Posts: 6235
Loc: Indianapolis, IN
30's deg F should be no problem.
Conventionals vs. Synthetics isn't about which is "better"; it's about which lasts longer, while assuring safe operation, in relation to cost. Any product can be over or under utilized. The same applies to filters.
Make an informed decision; first consider your operating conditions, next determine your maintenance plan, and then pick your lube and filter. Don't do it the other way around ...

#1342650 - 01/15/09 01:47 PM Re: 15w-40 Delo 400 temp range ? [Re: dnewton3]
RonH Offline

Registered: 12/15/08
Posts: 159
Loc: Lakewood, CO
It's OK to run as long as your bike will start. Too thick for my motorcycles starter to turn and start below about 30 degrees. Switch to 10w30 or 40 in the winter. 15w40 works fine in the diesel truck down to 20 below, but with 1700cca of battery as an aid in starting.