Engine oil used in warm country
Thread Starter
JK Freak
Joined: Dec 2009
Posts: 701
Likes: 0
From: Quebec, Montreal
Engine oil used in warm country
According to Wikipedia... :
5 - is the viscosity at low temperatures.
W - means it complies with the requirements for winter conditions.
30 - is the viscosity at high temperatures.
So I wonder if some of you in warm country or state use different kind of oil since the "W" is not needed at all...
?
Yeah I know its a weird question but since some of you had never seen snow or minus 20 degree temp, maybe you dont need at all the "W" certification.. ?
5 - is the viscosity at low temperatures.
W - means it complies with the requirements for winter conditions.
30 - is the viscosity at high temperatures.
So I wonder if some of you in warm country or state use different kind of oil since the "W" is not needed at all...
?
Yeah I know its a weird question but since some of you had never seen snow or minus 20 degree temp, maybe you dont need at all the "W" certification.. ?
JK Super Freak
Joined: Mar 2009
Posts: 1,529
Likes: 1
From: Austin, TX
I've never seen automotive engine oil that didn't have the "W" in it. The first number is basically start-up viscosity. Your engine is always colder at start-up even if you live in a warmer climate.
Thread Starter
JK Freak
Joined: Dec 2009
Posts: 701
Likes: 0
From: Quebec, Montreal
Yeah same here.. never seen any non-"W" oil. thats why i'm asking you if some other country or state offer some non-"W" oil according to temperature or something..
JK Enthusiast
Joined: May 2009
Posts: 125
Likes: 0
From: Waterdown, Ont. Can.
5W 30 is a thinner oil than 10W 30.
In the car I use 10w 30 in the summer and 5w 30 in the winter.
Here is an interesting clip I saw,
"People are arguing and really promoting the newer “thinner” oils. They say it’s what we should all run since the newer Vettes run 5w30, I think the Hemi even runs 5w20, I think. However my thinking is that these are newer design motors that were designed for the thinner oil. Over the years, the recommended oil has gone from 10w30 to 5w30, and now, to 5w20. Ford did absolutely no changes to the engine, they merely recommend the thinner oil for the slightly better fuel economy it returns. "
Might be why the Jeep wants 5W 20, but if you are in a hot part of the world maybe 5W 30 would be better?
In the car I use 10w 30 in the summer and 5w 30 in the winter.
Here is an interesting clip I saw,
"People are arguing and really promoting the newer “thinner” oils. They say it’s what we should all run since the newer Vettes run 5w30, I think the Hemi even runs 5w20, I think. However my thinking is that these are newer design motors that were designed for the thinner oil. Over the years, the recommended oil has gone from 10w30 to 5w30, and now, to 5w20. Ford did absolutely no changes to the engine, they merely recommend the thinner oil for the slightly better fuel economy it returns. "
Might be why the Jeep wants 5W 20, but if you are in a hot part of the world maybe 5W 30 would be better?
Thread Starter
JK Freak
Joined: Dec 2009
Posts: 701
Likes: 0
From: Quebec, Montreal
5W 30 is a thinner oil than 10W 30.
In the car I use 10w 30 in the summer and 5w 30 in the winter.
Here is an interesting clip I saw,
"People are arguing and really promoting the newer “thinner” oils. They say it’s what we should all run since the newer Vettes run 5w30, I think the Hemi even runs 5w20, I think. However my thinking is that these are newer design motors that were designed for the thinner oil. Over the years, the recommended oil has gone from 10w30 to 5w30, and now, to 5w20. Ford did absolutely no changes to the engine, they merely recommend the thinner oil for the slightly better fuel economy it returns. "
Might be why the Jeep wants 5W 20, but if you are in a hot part of the world maybe 5W 30 would be better?
In the car I use 10w 30 in the summer and 5w 30 in the winter.
Here is an interesting clip I saw,
"People are arguing and really promoting the newer “thinner” oils. They say it’s what we should all run since the newer Vettes run 5w30, I think the Hemi even runs 5w20, I think. However my thinking is that these are newer design motors that were designed for the thinner oil. Over the years, the recommended oil has gone from 10w30 to 5w30, and now, to 5w20. Ford did absolutely no changes to the engine, they merely recommend the thinner oil for the slightly better fuel economy it returns. "
Might be why the Jeep wants 5W 20, but if you are in a hot part of the world maybe 5W 30 would be better?
interesting... what about using different grade for winter VS summer then ?
JK Enthusiast
Joined: Dec 2009
Posts: 248
Likes: 0
From: Warrenton, VA
From page 402 of the manual
"Engine Oil Viscosity (SAE Grade)
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy."
From AMSOIL:
"When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C). The difference is when the viscosity is tested at a much colder temperature. For example, a 5W-30 motor oil performs like a SAE 5 motor oil would perform at the cold temperature specified, but still has the SAE 30 viscosity at 210° F (100° C) which is engine operating temperature. "
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy."
From AMSOIL:
"When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C). The difference is when the viscosity is tested at a much colder temperature. For example, a 5W-30 motor oil performs like a SAE 5 motor oil would perform at the cold temperature specified, but still has the SAE 30 viscosity at 210° F (100° C) which is engine operating temperature. "
Thread Starter
JK Freak
Joined: Dec 2009
Posts: 701
Likes: 0
From: Quebec, Montreal
"Engine Oil Viscosity (SAE Grade)
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy."
From AMSOIL:
"When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C). The difference is when the viscosity is tested at a much colder temperature. For example, a 5W-30 motor oil performs like a SAE 5 motor oil would perform at the cold temperature specified, but still has the SAE 30 viscosity at 210° F (100° C) which is engine operating temperature. "
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy."
From AMSOIL:
"When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C). The difference is when the viscosity is tested at a much colder temperature. For example, a 5W-30 motor oil performs like a SAE 5 motor oil would perform at the cold temperature specified, but still has the SAE 30 viscosity at 210° F (100° C) which is engine operating temperature. "
thanks !
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Banned Member
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"Engine Oil Viscosity (SAE Grade)
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy."
From AMSOIL:
"When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C). The difference is when the viscosity is tested at a much colder temperature. For example, a 5W-30 motor oil performs like a SAE 5 motor oil would perform at the cold temperature specified, but still has the SAE 30 viscosity at 210° F (100° C) which is engine operating temperature. "
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy."
From AMSOIL:
"When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C). The difference is when the viscosity is tested at a much colder temperature. For example, a 5W-30 motor oil performs like a SAE 5 motor oil would perform at the cold temperature specified, but still has the SAE 30 viscosity at 210° F (100° C) which is engine operating temperature. "
thanks
