15W40 engine oil use

[Anonymous-0]

Hi,

Just a quick note to enquire what you all use in your respective machine. Reason I am asking is I have a mixture of gas and diesel engined machines and was thinking of using just the one oil in all of them.
Two tractors - one gas and one diesel. Rider mower and snow blower both gas.

To make it easy I was wondering about using just the one oil for all machines. 15W40 summer and maybe 0W30 for winter - opinions please. Where I live it gets to -35C on winter and up to +35C summer.

Thx

J.

 

[Anonymous-0]

Whooops!,

I forgot to mention that the two vehicles I have (pickups) are both diesel and so is the JD450 I own.

The MF-65 tractor I have is a gas engined one.

So using just the one oil would help make things easier all around.

Thx.

J.

 

[Jeff Z.]

15-40 is a good all around oil to use but if it get"s that cold where you are I would go to a 5-20 or 5-30 in the winter.
I use 10-40 in all my tractors and have been using it for 35 years. Temp here might get to -18 below F for a few days. All seven Allis Chalmers{All 50+ years old} are still out working and never had an engine torn down due to an oil related failure.

 

[Jeff Z.]

Shell makes a good diesel oil. Rotella 15-40.
Can't see not using it in the tractor too..
I don't know if it is rated for -35c.
Call a diesel truck shop for some info on that low of a temp.

 

[Jeff Z.]

Where do you live where it get"s that cold???

 

[Jeff Z.]

A note from Shell:


Rotella T Synthetic 5W-40 (CI-4) would be a good cold weather choice for all 2006 and earlier models diesel engine pick-ups.

http://www.shellusserver.com/products/pdf/RotellaTSynthetic.pdf

2007 and newer models that have a diesel particulate filter require a CJ-4 rated oil. We plan on introducing Rotella T Synthetic 5W-4 (CJ-4) in April or May. A CJ-4 oil is backwards compatible with CI-4 and earlier categories. Do not use a CI-4 rated oil in a 2007 and newer model that have a diesel particulate filter.

 

[Anonymous-0]

i have one oil and one only and it's 15-40 series 3 use it in every engine i have about 15 gas and diesel engines from the lawnmower to the 350 hp wheel loader run it year around in Wi. everything starts just fine in winter coldest was -21

 

[Jerry/MT]

I live in Western Montana and have seen it get down to -40F but it generally doesn"t last long.

I too have several tractors and I tried using 15W40 in my TO-30 because that"s what I use in my Ford 4610. It made it more difficult to start so I went back to 10W40 year round in the Ferguson. I beginning to think that I need to go to 10W30 or 10W40in my Ford because it"s really hard start in below 5F. Ford recommends 10W30 SAE grade below 0C down to -25C. They don"t have a recomendation for below 25C.

I feed big round bales so if the tractor doesn"t start, the cows don"t eat or I have to pitch hay into the pick up to feed "em!
if you have consistent weather at or below -35C, then perhaps 5W30 might be a better choice for you. You might do some esach on the web and/or get a recommendation from your nearest dealer.

 

[Jeff Z.]

At 40 below I don't know if I would work let alone the tractor.

 

[Jeff Z.]

Another note from Shell.
Looks like the 5-40 would be a good oil for you year round. Hope this helps you out.
From Shell Oil:

The second number in the multigrade designation is based on a viscosity at 212F. To be a SAE 40 weight the oil must have a viscosity between 12.5 and 16.2 centistokes at 212F. At 212 F a straight 40, a 15W-40 and a 5W-40 are all in the 12.5 to 16.2 viscosity range. Therefore, a 5W-40 is not a thinner oil at operating temperatures (approximately 212F). However, when you cool the oils the straight 40 will thicken the most, and the 5W-40 will thicken the least. This makes Rotella T Synthetic 5W-40 a good year round oil in both hot and cold weather.

 

[Jerry/MT]

Sometimes you don"t have a choice!

 

[Anonymous-0]

Hi Guys,

Thanks for all of your replies. Seems the general concensus is that sticking to the one oil will work - which is what I thought. It will certainly make things a lot easier all around and I won't need to be concerned about mixing oils/brands.

I am in central BC, Canada and just about a month ago had a week of -35C temperatures. Not nromally that cold, but it does happen now and then. When it is that cold I don't go outside unless I absolutely have too

Thanks again for your comments.

J.