Oil change
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New User
Joined: Dec 2002
Posts: 20
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From: Willow River MN.
Oil change
I will be changing over to Shell syn. 5w40 at my next oil change, I would like to know especialy from the colder climate guys like MN. etc. can I use this year round? I put a 10 1/2' pick up camper on in the summer and plan on going out west with the higher temp. out west will the syn. still be a good choice? Also since I will be changing over do I need to try to get the Dino out of the HPOP or will it be okay. 
Lead Driver
Joined: Jan 2005
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From: Rouleau, Saskatchewan
I use the 5w-40 syn in the winter but I have never used it in the summer so I can't say for sure. It is 40 weight oil so it should be fine for summer, the 5w is the number you look at for cooler weather operation. I have been just switching back between 15w and 5w depending on the season.
Senior User
Joined: Jan 2007
Posts: 306
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From: spring lake park mn
not a problem hear in minnesota. imo it's the best all-around oil.
i change at 5000 mil/ due to short trip's on week end's
lee
i change at 5000 mil/ due to short trip's on week end's
lee
Last edited by leekingen; Feb 17, 2008 at 10:52 AM. Reason: forgot
Elder User
Joined: Mar 2006
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From: Greeneville,TN
You can certainly use the 5w40 year around in MN. I use a 5w40 year around here in TN. Like mentioned above. The 5 stand for winter weight. In other words you will get better cold cranking ability with that weight of oil. The oil will still a viscosity of a 40 weight when fully warmed up.
Post Fiend
Joined: Jul 2005
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From: 21791
I suck the HPO reservoir dry every change regardless of what oil im putting back in. Thats a quart of dirty oil that's so easy to get at, that you can drain out and not have mix back in with the clean oil. But just remember, you may need to buy an extra quart, as youre taking another quart out that's not normally being taken out. Just remember to fill it back up, and i like to unplug my CPS and crank the engine for 10 seconds to get it lubed before i fire it up for the first time on a new oil change.
Post Fiend
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From: 21791
Originally Posted by jrciii56
You can certainly use the 5w40 year around in MN. I use a 5w40 year around here in TN. Like mentioned above. The 5 stand for winter weight. In other words you will get better cold cranking ability with that weight of oil. The oil will still a viscosity of a 40 weight when fully warmed up.
Elder User
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From: Greeneville,TN
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Post Fiend
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From: 21791
The plug is on the top of the reservoir, it takes a 3/16" allen wrench. Find a tube that can go in the hole, and either suck it out with an extractor or siphon it out, there should be a quart or so, but dont worry youre not going to get all of it all the time.
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Post Fiend
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From: 21791
No, newer oils are a Multigrade oil, with the w seperating them, signifying that the first number is how the oil will act when cold ( thin is good for startup, the oil flows to the bearings quicker, in the case of our powerstrokes it also starts smoother due to the injection system), and the oil acts as a thicker 40 weight oil to support high engine loads on the bearings.
Elder User
Joined: Mar 2006
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From: Greeneville,TN
Not to start a pissing contest, but I always thought the w stand for winter. Check out these links. The first one explains how it came about.
http://www.sae.org/news/rightoil.htm
https://mmsynthetics.com/FAQ.php
http://www.hascooil.com/faq/#p27
http://www.gulflubricants.co.uk/prod/faq3.html#29
http://www.sae.org/news/rightoil.htm
https://mmsynthetics.com/FAQ.php
http://www.hascooil.com/faq/#p27
http://www.gulflubricants.co.uk/prod/faq3.html#29
Elder User
Joined: Mar 2006
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From: Greeneville,TN
When they build engine oils, they start with a 5, 10, or 15 weight oil. They then add man made polymers to give it a viscosity of what ever oil is says on the oil. Example in a 15w40. They start with a 15 weight oil. Once the oil heats up it change viscosity to a 40 weight. The polymers are what change the viscosity.
Post Fiend
Joined: Jul 2005
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From: 21791
Originally Posted by jrciii56
Not to start a pissing contest, but I always thought the w stand for winter. Check out these links. The first one explains how it came about.
http://www.sae.org/news/rightoil.htm
https://mmsynthetics.com/FAQ.php
http://www.hascooil.com/faq/#p27
http://www.gulflubricants.co.uk/prod/faq3.html#29
http://www.sae.org/news/rightoil.htm
https://mmsynthetics.com/FAQ.php
http://www.hascooil.com/faq/#p27
http://www.gulflubricants.co.uk/prod/faq3.html#29
Post Fiend
Joined: Feb 2007
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From: Dallas-Ft. Worth
That's one of the things I love about this forum. You can make mistakes or be wrong about something and you're not crucified. Lord knows I've made enough mistakes, but I always admit when I do because I know most folks here aren't ready start swinging the ax.