Temp for 10w40

[Camprunner]

My father gave me about 15 quarts of Pennzoil Conventional 10w40 current formula that he has no use for so I thought I would use it up in my 2012 V6 Nissan Pathfinder since it runs great on Mobil 1 0W40 I hope it will run fine on the Pennzoil conventional.

Living in MA it is still in the 30'sF at night is that too cold to switch to 10w40? And will Pennzoil Conventional 10w40 do 5,000 miles ok? I am not to farmiluar with conventional 40 weight oils.

 

[Atesz792]

10w is good down to -20°C. Use with confidence.
Don't believe tha naysayers that have never even poured some out of a bottle.

 

[mightymousetech]

What's the KV at 40C? That should guide your answer.

 

[bmwpowere36m3]

Totally fine...

 

[BrocLuno]

It'll be fine and it'll do 5K just fine too

 

[FCD]

I guess it's fine.

 

[harryberry]

Same here. I do think that it's fine using that and won't really do any harm to your car really.

 

[Bronco1]

I was asking about oil for my Bronco in colder weather and Overkill provided the following info. Hope it helps:

"CCS/MRV temps (C):
0W-xx -35/-40
5W-xx -30/-35
10W-xx -25/-30
15W-xx -20/-25
20W-xx -15/-20"

 

[ARCOgraphite]

There was no 5w30 when I was driving in the 70's.

20w, 30, 40 10w30, 10w40 and 15w40 for Compression Ignition.

Somehow we made it through winter

Even the blizzard of '78.

 

[Virtus_Probi]

Originally Posted By: Camprunner
My father gave me about 15 quarts of Pennzoil Conventional 10w40 current formula that he has no use for so I thought I would use it up in my 2012 V6 Nissan Pathfinder since it runs great on Mobil 1 0W40 I hope it will run fine on the Pennzoil conventional.

Living in MA it is still in the 30'sF at night is that too cold to switch to 10w40? And will Pennzoil Conventional 10w40 do 5,000 miles ok? I am not to farmiluar with conventional 40 weight oils.


You should be just fine in the 30s, but we are also supposed to get a major warmup next week that should erase even your slightest concerns...might be in the 80s by midweek.

Not sure about the comment about viscosity at 40C was getting at, that is 104F...

 

[kschachn]

Originally Posted By: ARCOgraphite
There was no 5w30 when I was driving in the 70's.


Maybe, but there was a 5W-20 you could have bought.

 

[FCD]

Mobil 1 5W-20 came out in 1976, and at that time Amsoil or "Amzoil" as it was known then was already on sale.
I think my father might have tried Mobil 1 in 1978 ish in my Capri as he said when it was 3 years old he used the new Mobil synthetic oil but he said it was expensive and burned off too fast, he tried it for one winter since where he lived in Northern Finland the temps can go down to -30C in January and he had heard it worked well in the cold.

 

[steveh]

My owners manual for my 2005 Altima says you can use 10w40 above 0F.

 

[ARCOgraphite]

Ran M1 in the early 80's. Superb GM 2.8L V6 engine in the ole S10. engine sounded and ran terrible so I dumped it the very same day.

Big $$$ oil change down the gopher hole.

 

[kschachn]

Originally Posted By: ARCOgraphite
Ran M1 in the early 80's. Superb GM 2.8L V6 engine in the ole S10. engine sounded and ran terrible so I dumped it the very same day.

Big $$$ oil change down the gopher hole.


Clearly there was some defect or deficiency with the engine then, likely brought on by poor maintenance by the operator.

I ran it for a long time in my 1974 Buick Regal 455 (also a superb engine) and I had no issues whatsoever. Later on I ran it in my 1979 Plymouth and didn't have any problems there either.

I'd guess your engine was worn out or shot because it hadn't been maintained properly.

 

[Lubener]

Originally Posted By: Atesz792
10w is good down to -20°C. Use with confidence.
Don't believe tha naysayers that have never even poured some out of a bottle.


This is not sound advice for everyone. It depends on what you are putting it in. My Buick's manual states that 10w is ok down to 0 degrees(F). You wouldn't want to put a 10w-40 in a newer Subaru for example at any temperature. -20(c) is close enough @ -4(F). I "doubt" summer would be a problem but I would go lighter for next winter. Best bet is to follow the manual not so called "specialists".

 

[B320i]

Originally Posted By: Lubener
This is not sound advice for everyone. It depends on what you are putting it in. My Buick's manual states that 10w is ok down to 0 degrees(F). You wouldn't want to put a 10w-40 in a newer Subaru for example at any temperature. -20(c) is close enough @ -4(F). I "doubt" summer would be a problem but I would go lighter for next winter. Best bet is to follow the manual not so called "specialists".

At the end of the day, OP's vehicle is already running a 0w-40. 10w-40 isn't going to make a huge difference, particularly with the weather supposedly getting warmer in that part of the world soon.

 

[ARCOgraphite]

Originally Posted By: kschachn
Originally Posted By: ARCOgraphite
Ran M1 in the early 80's. Superb GM 2.8L V6 engine in the ole S10. engine sounded and ran terrible so I dumped it the very same day.

Big $$$ oil change down the gopher hole.


Clearly there was some defect or deficiency with the engine then, likely brought on by poor maintenance by the operator.

I ran it for a long time in my 1974 Buick Regal 455 (also a superb engine) and I had no issues whatsoever. Later on I ran it in my 1979 Plymouth and didn't have any problems there either.

I'd guess your engine was worn out or shot because it hadn't been maintained properly.


Must beApplication specific. = Not this car