The subject says it all, this is in the southwest, where temps never
drop below 25 (night) in winter and summers hit 100+ 3 months of the
year.
Is it okay to use 10w30 instead of the 5w30 mentioned in the manual ?

Sure it is.

5w is thinner when cold than 10w, but the 30 is the same. There is a strong
argument that 5w will give better fuel economy, but I can't confirm this as
fact or fiction. Logic supports it as fact -- thinner oil pumps easier,
therefore takes less energy to move. Is the difference enough to make a dent
on gas mileage? I don't know.






"RT" <noyabusiness@yahoo.com> wrote in message
news:1qifs2d7f53a3raq3n6v0e6l826s7jl8to@4ax.com...
> The subject says it all, this is in the southwest, where temps never
> drop below 25 (night) in winter and summers hit 100+ 3 months of the
> year.
> Is it okay to use 10w30 instead of the 5w30 mentioned in the manual ?
>

On Tue, 06 Feb 2007 02:59:37 GMT, "Jeff Strickland"
<crwlr@verizon.net> wrote:

>Sure it is.
>
>5w is thinner when cold than 10w, but the 30 is the same. There is a strong
>argument that 5w will give better fuel economy, but I can't confirm this as
>fact or fiction. Logic supports it as fact -- thinner oil pumps easier,
>therefore takes less energy to move. Is the difference enough to make a dent
>on gas mileage? I don't know.

Well, the reason wasn't that I wondered about gas mileage, it's more
the fact that I have a stash of 10W30 sitting around from my other car
and if I could use it in my friends mr2 I don't need to run out and
buy 5w30.

>
>
>
>
>
>
>"RT" <noyabusiness@yahoo.com> wrote in message
>news:1qifs2d7f53a3raq3n6v0e6l826s7jl8to@4ax.com.. .
>> The subject says it all, this is in the southwest, where temps never
>> drop below 25 (night) in winter and summers hit 100+ 3 months of the
>> year.
>> Is it okay to use 10w30 instead of the 5w30 mentioned in the manual ?
>>

"RT" <noyabusiness@yahoo.com> wrote in message
news:ddqks2dn80q0riquq492uijmda4sj8f7a4@4ax.com...
> On Tue, 06 Feb 2007 02:59:37 GMT, "Jeff Strickland"
> <crwlr@verizon.net> wrote:
>
>>Sure it is.
>>
>>5w is thinner when cold than 10w, but the 30 is the same. There is a
>>strong
>>argument that 5w will give better fuel economy, but I can't confirm this
>>as
>>fact or fiction. Logic supports it as fact -- thinner oil pumps easier,
>>therefore takes less energy to move. Is the difference enough to make a
>>dent
>>on gas mileage? I don't know.
>
> Well, the reason wasn't that I wondered about gas mileage, it's more
> the fact that I have a stash of 10W30 sitting around from my other car
> and if I could use it in my friends mr2 I don't need to run out and
> buy 5w30.
>

Go ahead and use up the 10W30 and buy the manufacturer's recommended
viscosity and grade in the future.
--

Ray O
(correct punctuation to reply)

"Ray O" <rokigawaATtristarassociatesDOTcom> wrote in message
news:e7f39$45cabc31$47c2b532$7782@msgid.meganewsse rvers.com...
>
> "RT" <noyabusiness@yahoo.com> wrote in message
> news:ddqks2dn80q0riquq492uijmda4sj8f7a4@4ax.com...
>> On Tue, 06 Feb 2007 02:59:37 GMT, "Jeff Strickland"
>> <crwlr@verizon.net> wrote:
>>
>>>Sure it is.
>>>
>>>5w is thinner when cold than 10w, but the 30 is the same. There is a
>>>strong
>>>argument that 5w will give better fuel economy, but I can't confirm this
>>>as
>>>fact or fiction. Logic supports it as fact -- thinner oil pumps easier,
>>>therefore takes less energy to move. Is the difference enough to make a
>>>dent
>>>on gas mileage? I don't know.
>>
>> Well, the reason wasn't that I wondered about gas mileage, it's more
>> the fact that I have a stash of 10W30 sitting around from my other car
>> and if I could use it in my friends mr2 I don't need to run out and
>> buy 5w30.
>>
>
> Go ahead and use up the 10W30 and buy the manufacturer's recommended
> viscosity and grade in the future.
> --



What Ray said ...