5w30

[burgundyz71]

When I last changed oil she got 6 qts. of 10-30 Valvoline, You guys think it would be better to use 5-30 now that winter is moving in on us ? Here in Pa. we can get pretty cold here on top the mountain.

[Roofer]

Not a bad idea. I switch to 5-30 in the winter also. Here in MN it gets mighty cold, and the way this thing knocks sometimes, I feel better with 5-30 in there.

[2000 GMC]

Thanks what I run here in Alaska.  Locals say last year was a mild winter, but still got below 0 a few times.  Wifes car didn't need a core heater, I just ran 5-30 in it.  Going to put he 5-30 in my truck next oil chang, end of November.  

[DigUout]

I always switch over to 5w-30 in the fall.  My last change, about 1K ago, I switched to Mobil 1.  With the extreme temp changes coming I'm interested to see if I notice any changes -

[Shaners]

5W-30 all the way!!!

[pawpaw]

Here in Missouri, I use 10W-30 Mobil 1 year round.  We rarely see sub zero temperatures in the winter -- and the K 1500 Suburban is garaged at home.  

 

We usually take a ski trip to Colorado.  I rely on the good cold flow characteristics of the Mobil 1 to handle the cold morning starts.  Figure it's a good trade off for the more robust oil stock of the 1600 mile road trip.

 

Barry

[RyanbabZ71]

I run 5W-30 year round and have for over 20K (indiana and it gets cold in the winter and hot in the summer)

[LT]

I use 5-30 year around. Have for many years.

[Ranger Dave]

I run 5W30 year round with no troubles.

[y2kz71]

I use 5w-30 and PF-59 year round with no problems in 48k MILES.

[Stepside Z]

I use 5-30 all the time and have had no problems at all.