As some of you might know, I bought a huge bulk of single grade oil through the advance auto huge clearance sale on the website and i'm a little confused about single grade oil. I've heard it's only okay to run it in warmer temps and not so much in the winter. Is it safe to run this in the winter as well as summer? Or is this strictly a warm weather oil?
What does a single grade oil translate to exactly?
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Originally Posted By: zoomzoomlx
As some of you might know, I bought a huge bulk of single grade oil through the advance auto huge clearance sale on the website and i'm a little confused about single grade oil. I've heard it's only okay to run it in warmer temps and not so much in the winter. Is it safe to run this in the winter as well as summer? Or is this strictly a warm weather oil?
If your talking about straight 30 weight,that is really only good for lawn mowers.I would not recommend using in an automobile.
As some of you might know, I bought a huge bulk of single grade oil through the advance auto huge clearance sale on the website and i'm a little confused about single grade oil. I've heard it's only okay to run it in warmer temps and not so much in the winter. Is it safe to run this in the winter as well as summer? Or is this strictly a warm weather oil?
If your talking about straight 30 weight,that is really only good for lawn mowers.I would not recommend using in an automobile.
Originally Posted By: lexus114
Originally Posted By: zoomzoomlx
As some of you might know, I bought a huge bulk of single grade oil through the advance auto huge clearance sale on the website and i'm a little confused about single grade oil. I've heard it's only okay to run it in warmer temps and not so much in the winter. Is it safe to run this in the winter as well as summer? Or is this strictly a warm weather oil?
If your talking about straight 30 weight,that is really only good for lawn mowers.I would not recommend using in an automobile.
What kind of experience gives you that idea?
Originally Posted By: zoomzoomlx
As some of you might know, I bought a huge bulk of single grade oil through the advance auto huge clearance sale on the website and i'm a little confused about single grade oil. I've heard it's only okay to run it in warmer temps and not so much in the winter. Is it safe to run this in the winter as well as summer? Or is this strictly a warm weather oil?
If your talking about straight 30 weight,that is really only good for lawn mowers.I would not recommend using in an automobile.
What kind of experience gives you that idea?
It`s simple actually,all modern day engines require a multi viscosity motor oil.And single weight oil`s are often non detergent oils too.If you want to hear valve chatter,try it and you`ll get that and more.Especially in a cold climate.
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You better ask G-man about straight weights. He has found excellent results in his vehicle.
unless your talking about something with 200k on the clock,and a very warm climate. Still I wouldn`t suggest it.
The company I used to work for [17 years] used straight 30 in the company cars ,vans ,semi trucks , tractors ,forklifts ,all late models and the bodys would fall apart with the engines still running fine. nothing is actually simple with all modern day engines.
Probably killed the mpg in the cars though.Straight 30wt oil is very thick. That`s why it performs so well in an air cooled engine. Now by all means,use what oil you want,I just know I wouldn`t use it.
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Originally Posted By: 02zx9r
Straight 30 weight is going to be far more shear stable than multi-vis 5W or 10W30
I would use straight weight in warm temps and cool (not cold) but 60F and up.
Straight 40 weight in a bike will perform better than 10W40
I agree with you on the 60F and above.but not necessary in a newer vehicle.That`s just my opinion.(and I`m not alway`s right)
Straight 30 weight is going to be far more shear stable than multi-vis 5W or 10W30
I would use straight weight in warm temps and cool (not cold) but 60F and up.
Straight 40 weight in a bike will perform better than 10W40
I agree with you on the 60F and above.but not necessary in a newer vehicle.That`s just my opinion.(and I`m not alway`s right)
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Straight weights just don't have much use outside of lawnmowers or stationary power units. No automobile spec's one (okay, someone dust off some owners manual or find some whacked application so you can nitpick
). Sure you can use them and they'll do their job well. Most here could probably use SAE 30 during the warmer 6 months of the year (maybe 9) and SAE 20 for the wintah. That's what the savvy types did "back in the day" when multivisc's were lame.
A SAE 30 would be about 3X thicker @ 32F than a comparable 5w30.
This is not to say that it would be "too thick" ..but they don't have CCS or MRV spec's on non-W rated oils.
A SAE 30 would be about 3X thicker @ 32F than a comparable 5w30.
This is not to say that it would be "too thick" ..but they don't have CCS or MRV spec's on non-W rated oils.
Originally Posted By: Gary Allan
Straight weights just don't have much use outside of lawnmowers or stationary power units. No automobile spec's one (okay, someone dust off some owners manual or find some whacked application so you can nitpick
). Sure you can use them and they'll do their job well. Most here could probably use SAE 30 during the warmer 6 months of the year (maybe 9) and SAE 20 for the wintah. That's what the savvy types did "back in the day" when multivisc's were lame.
A SAE 30 would be about 3X thicker @ 32F than a comparable 5w30.
This is not to say that it would be "too thick" ..but they don't have CCS or MRV spec's on non-W rated oils.
I have noticed the the preferred oil in some of my new equipment, including my snowblower, says you can still use straight 30w, but recommends the use of a synthetic in 0 or 5w30. Me, I had a spare 20oz of SSO 0w30 so I put in the snowblower!
Straight weights just don't have much use outside of lawnmowers or stationary power units. No automobile spec's one (okay, someone dust off some owners manual or find some whacked application so you can nitpick
A SAE 30 would be about 3X thicker @ 32F than a comparable 5w30.
This is not to say that it would be "too thick" ..but they don't have CCS or MRV spec's on non-W rated oils.
I have noticed the the preferred oil in some of my new equipment, including my snowblower, says you can still use straight 30w, but recommends the use of a synthetic in 0 or 5w30. Me, I had a spare 20oz of SSO 0w30 so I put in the snowblower!
But why, when multi-visc oil that meets the latest spec with additives last longer and performs better, at the same/similar price? Even lawn mower deserves multi-visc oil.
OK, Gary, you asked for it. 
Current Subaru manuals recommend SAE 30 or SAE 40 for heavy duty use in hot weather.
Ed
Current Subaru manuals recommend SAE 30 or SAE 40 for heavy duty use in hot weather.
Ed
The oil in question here is straight 30 weight Rotella. I picked up a huge bunch from Advance Auto yesterday. I live in southeast PA where it doesn't get arctic cold in the winter. Car in question is a 93 Escort which calls for 5w30. I was just curious if it was okay to run the 30 weight for winter use in the future or if not, i'll just keep it for the warmer 8-9 months of the year.
It wouldn't be my first chocie of oils. If I did buy it I would run it in the late spring to summer when temps get to about 70* F and above.
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Frank D
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Frank D
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