Winter oil [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Winter oil


3wheelerdude
10-04-2006, 10:03 AM
I was reading, and found out that 5w-40 (Mobile or Rotella) would be better for winter. Now I just need to know how much I need. 4, 5 or 6 liters?

High Sierra 2500
10-04-2006, 10:07 AM
Well, I don't know how many liters it is, but I do know that it holds about 7 quarts.

Trevor
10-04-2006, 10:28 AM
One U.S. quart = 0.9463 litres. 7 quarts x 0.9463= 6.6241 litres so buy seven litres of oil and your all good

3wheelerdude
10-04-2006, 10:51 AM
Perfect, thank you.

Any tips for changing the oil in this beast. First time I do it, but I've done many cars before. Cant be much different.

Wich oil and filters do you guys use by the way?

High Sierra 2500
10-04-2006, 01:06 PM
I've been using Rotella oil (usually 15W40) and Fram filters (PH7 if I recall correctly). I know the Fram filters don't have a great reputation, but it's really all I can get most of the time...

Changing the oil is about the same as changing the oil on anything else... The only differences are that the filters are bigger, the oil is different, and the filter must be changed at every oil change.

Hope this helps!

3wheelerdude
10-04-2006, 02:48 PM
Sounds good.

I had the choice between QuakerState and Fram for the filter and I did choose the QS because of Frams rep.

Now I have to choose between Rotella 0W-40 Full Synthec and Prolab 0w40 mineral. The only thing holding me back on the Rotella is the price. But I am so scared of cheap oils that I will most likely end up getting the Rotella anyway.

GMC-YA
10-04-2006, 09:43 PM
Sounds good.

I had the choice between QuakerState and Fram for the filter and I did choose the QS because of Frams rep.

Now I have to choose between Rotella 0W-40 Full Synthec and Prolab 0w40 mineral. The only thing holding me back on the Rotella is the price. But I am so scared of cheap oils that I will most likely end up getting the Rotella anyway.
0w-40 ????, I'm not sure but I think I've seen around here that 15-40 is about the lightest you should go, but that might be just with regular dino oil. I'm sure someone here will strighten me out:) I tried Rotella synthintic once in a high milage truck and it leaked horrible changed back to regular 15-40 and almost no leak! I was told the molacules are smaller so it leakes out easyer??? OK I'LL BUY THAT

3wheelerdude
10-05-2006, 08:27 AM
Well, the only Rotella available around here is 0w-40. From reading around the forum, I saw that for winter 5w-... or 0w-... is good. Anyone else wanna add to this. Personnal experiences with lighter oil leaking....... anyone?

High Sierra 2500
10-05-2006, 09:06 AM
Well, the only stuff I can get here is Rotella 15W40 and I've used that all the way through the winter... With temps below -10 F the truck started fine (block heater plugged in, of course). 0W40 is too light if you ask me, but if that's all you can get, that's all you can get...

I have noticed that lighter oils can, on occasion, cause more oil leakage. I haven't seen that with my 6.2 (don't like to experiment to much with oil in that and it doesn't leak anyway), but I have seen it on certain old motorcycles and lawn mowers and other odd car engines. I think it has to be leaking to begin with, though... If it's sealed up good it won't leak even if you put a bunch of kerosene in it (not recommended ):h ). The lighter oil is not as thick and therefore leaks faster, not in more places (from my experience, anyway).

Hope this helps!

emerson
10-05-2006, 10:26 AM
The first number is what the oil is cold. Once it warms up the second number applies. A low viscosity oil on startup lubricates sooner in those critical first few seconds where most engine wear occurs. Up here most folks run synthetic 0W40 in the winter. It's what I'm going to do. I'd rather chance a small leak than delayed lube on startup.

flanman5
10-05-2006, 11:39 AM
I run 0w40 year round in my truck and have never had a problem.

tigman
10-05-2006, 12:21 PM
Hi , 5-40 mobile synt. winter oil 15-40 regular for summer oil.


Ed