What Grade Oil to use in winter time?
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Junior Member
Joined: Sep 2004
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From: Ontario, Canada
What Grade Oil to use in winter time?
ok well i got a type r motor in my eg and was going to be changing the oil this weekend and was wondering what grade oil you guys use in the winter time?
that is if anyone one drives there R in the winter.
thanks
that is if anyone one drives there R in the winter.
thanks
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Honda-Tech Member
Joined: Mar 2002
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From: Somewhere in MI
Re: (JaymieTypeR)
a general rule of thumb is to use what is reccomended by the manufacturer.
the first # is the viscosity index, or how much it changes from hot (210*F to 0*F).
the W means winter
the last # is the actual viscosity.
so 5w30 is like a 35 weight at 0*F.
Basically, you want one with a small viscosity change for cold starts. A 10w30 won't get into all the clearances and flow as easily at 0*F compared to a 5w30. But, you also don't want too thin of an oil or it won't lubricate, adhear to the bearings as well (hydro dynamic wedging), and can also void your warranty (they do have tests for this).
-Andrew
the first # is the viscosity index, or how much it changes from hot (210*F to 0*F).
the W means winter
the last # is the actual viscosity.
so 5w30 is like a 35 weight at 0*F.
Basically, you want one with a small viscosity change for cold starts. A 10w30 won't get into all the clearances and flow as easily at 0*F compared to a 5w30. But, you also don't want too thin of an oil or it won't lubricate, adhear to the bearings as well (hydro dynamic wedging), and can also void your warranty (they do have tests for this).
-Andrew
Honda-Tech Member
Joined: Jan 2001
Posts: 8,136
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From: kuidaore
Re: (.RJ)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RJ »</TD></TR><TR><TD CLASS="quote">So? 
oil threads make my head a splode
Where's Ken? :fire:</TD></TR></TABLE>
Make it go away..........................................
oil threads make my head a splode
Where's Ken? :fire:</TD></TR></TABLE>Make it go away..........................................
H-T Order of Merit
Joined: Jan 2000
Posts: 23,478
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From: Chicago
Re: (.RJ)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RJ »</TD></TR><TR><TD CLASS="quote">So?
oil threads make my head a splode Where's Ken? :fire:</TD></TR></TABLE>
I already posted.
Maybe there's more consensus about the oils being used in the winter than in warmer weather.
Incidentally, synthetic oil has a significant advantage over conventional oil in the ability to flow at cold temperatures...
oil threads make my head a splode
Where's Ken? :fire:</TD></TR></TABLE>I already posted.
Maybe there's more consensus about the oils being used in the winter than in warmer weather.
Incidentally, synthetic oil has a significant advantage over conventional oil in the ability to flow at cold temperatures...
Honda-Tech Member
Joined: Oct 2003
Posts: 11,340
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From: Homie dont, play that, USA
Re: (opie)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by opie »</TD></TR><TR><TD CLASS="quote">5W 30 Castrol GTX all year round. Never burn a drop.</TD></TR></TABLE>
I run the same ****...all year round baby
I run the same ****...all year round baby
Honda-Tech Member
Joined: Apr 2002
Posts: 2,156
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From: Bad Newz Kennels
Re: (B18C-Rsi)
the W number will tell you the cold cranking viscosity at extremely cold tempereatures.
heres a cool chart: http://www.infineum.com/information/viscosity.html
just go with castrol syntec 0w-30 is probably the best year round oil 30wt. on the market. it is a 0w so it will work at very cold temps. and it is thick enough at operating temperature to retain its viscosity at temps at or over 100C. the good thing about this oil is that castrol did not have to start with a thin base oil and then add viscosity index improvers to thicken it up as oil temperatures increase. they started out with a base oil that flows well in cold temps. when a lot esters are present in a the base oil, it will improve the cold weather performance of that oil. basically there are two ways of making a good winter oil. either start with a thin base oil and add VII's or add esters into the formula and keep a thicker base oil.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy »</TD></TR><TR><TD CLASS="quote">
Incidentally, synthetic oil has a significant advantage over conventional oil in the ability to flow at cold temperatures...</TD></TR></TABLE>
i would chose a 10w-30 synthetic over a 5w-30 conventional in cold temps.
heres a cool chart: http://www.infineum.com/information/viscosity.html
just go with castrol syntec 0w-30 is probably the best year round oil 30wt. on the market. it is a 0w so it will work at very cold temps. and it is thick enough at operating temperature to retain its viscosity at temps at or over 100C. the good thing about this oil is that castrol did not have to start with a thin base oil and then add viscosity index improvers to thicken it up as oil temperatures increase. they started out with a base oil that flows well in cold temps. when a lot esters are present in a the base oil, it will improve the cold weather performance of that oil. basically there are two ways of making a good winter oil. either start with a thin base oil and add VII's or add esters into the formula and keep a thicker base oil.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy »</TD></TR><TR><TD CLASS="quote">
Incidentally, synthetic oil has a significant advantage over conventional oil in the ability to flow at cold temperatures...</TD></TR></TABLE>
i would chose a 10w-30 synthetic over a 5w-30 conventional in cold temps.
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