Running 5W30 in the Summer instead of 10W30: Any real problems?

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Old 22 Mar 2005, 08:40 pm   #1 (permalink)
Car Guy
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Default Running 5W30 in the Summer instead of 10W30: Any real problems?

I have about 15 litres of Mobil 1 5W30 sitting around and was going to use
this in the summer for my 2002 Camry LE V6. I know at operating temp, the
10W30 and 5W30 are both 30 weight but the sheer strength may be thinner on
the 5W30 grade. When temps run about 100 degrees F. or about 40 degrees C..
will the 5W30 cause issues with the engine where 10W30 won't? I mean I can
always go and get 10W30 but given my driving (85% highway driving at 75 mph)
and oil change frequency (every 7 weeks or 4,500 miles), I figure it should
be ok.

Any thoughts?


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Old 22 Mar 2005, 08:47 pm   #2 (permalink)
TeGGer®
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Default Re: Running 5W30 in the Summer instead of 10W30: Any real problems?

"Car Guy" <ac222@hotmail.com> wrote in
news:xcednTYk-MSpSt3fRVn-uw@rogers.com:

> I have about 15 litres of Mobil 1 5W30 sitting around and was going to
> use this in the summer for my 2002 Camry LE V6. I know at operating
> temp, the 10W30 and 5W30 are both 30 weight but the sheer strength may
> be thinner on the 5W30 grade. When temps run about 100 degrees F. or
> about 40 degrees C.. will the 5W30 cause issues with the engine where
> 10W30 won't? I mean I can always go and get 10W30 but given my
> driving (85% highway driving at 75 mph) and oil change frequency
> (every 7 weeks or 4,500 miles), I figure it should be ok.
>
> Any thoughts?
>
>
>



No problems at all. 5W-30 will work fine in a Canadian summer. I use 5W-30
year-round.

--
TeGGeR®

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Old 22 Mar 2005, 09:12 pm   #3 (permalink)
hachiroku
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Default Re: Running 5W30 in the Summer instead of 10W30: Any real problems?

On Tue, 22 Mar 2005 21:40:56 -0500, Car Guy wrote:

> I have about 15 litres of Mobil 1 5W30 sitting around and was going to use
> this in the summer for my 2002 Camry LE V6. I know at operating temp, the
> 10W30 and 5W30 are both 30 weight but the sheer strength may be thinner on
> the 5W30 grade. When temps run about 100 degrees F. or about 40 degrees C..
> will the 5W30 cause issues with the engine where 10W30 won't? I mean I can
> always go and get 10W30 but given my driving (85% highway driving at 75 mph)
> and oil change frequency (every 7 weeks or 4,500 miles), I figure it should
> be ok.
>
> Any thoughts?


I think you probably shouldn't run this stuff at all. Nope, not a good
idea. I will give you my e-mail address; snd me all 15 litres and I will
dispose of them for you, at no cost to you!

(there I go being selfless again!)

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Old 23 Mar 2005, 12:46 am   #4 (permalink)
Bruce L. Bergman
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Default Re: Running 5W30 in the Summer instead of 10W30: Any real problems?

On Wed, 23 Mar 2005 03:12:22 GMT, hachiroku <levin@ae86.gts> wrote:

>On Tue, 22 Mar 2005 21:40:56 -0500, Car Guy wrote:
>
>> I have about 15 litres of Mobil 1 5W30 sitting around and was going to use
>> this in the summer for my 2002 Camry LE V6. I know at operating temp, the
>> 10W30 and 5W30 are both 30 weight but the sheer strength may be thinner on
>> the 5W30 grade. When temps run about 100 degrees F. or about 40 degrees C..
>> will the 5W30 cause issues with the engine where 10W30 won't? I mean I can
>> always go and get 10W30 but given my driving (85% highway driving at 75 mph)
>> and oil change frequency (every 7 weeks or 4,500 miles), I figure it should
>> be ok.
>>
>> Any thoughts?

>
>I think you probably shouldn't run this stuff at all. Nope, not a good
>idea. I will give you my e-mail address; snd me all 15 litres and I will
>dispose of them for you, at no cost to you!
>
>(there I go being selfless again!)


Hey Mr. Selfless:

You need to provide a Snail-mail address if you want that to work.
There isn't a postman or delivery driver alive who can stuff a
physical parcel through the internet... ;-)

--<< Bruce >>--

--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
Spamtrapped address: Remove the python and the invalid, and use a net.
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Old 23 Mar 2005, 01:02 am   #5 (permalink)
Mark A
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Default Re: Running 5W30 in the Summer instead of 10W30: Any real problems?

> >> I have about 15 litres of Mobil 1 5W30 sitting around and was going to
use
> >> this in the summer for my 2002 Camry LE V6. I know at operating temp,

the
> >> 10W30 and 5W30 are both 30 weight but the sheer strength may be thinner

on
> >> the 5W30 grade. When temps run about 100 degrees F. or about 40

degrees C..
> >> will the 5W30 cause issues with the engine where 10W30 won't? I mean I

can
> >> always go and get 10W30 but given my driving (85% highway driving at 75

mph)
> >> and oil change frequency (every 7 weeks or 4,500 miles), I figure it

should
> >> be ok.
> >>
> >> Any thoughts?

> >

You can, and should, use 5W-30 all year around, assuming that your engine
has not experienced serious engine wear from no using synthetic oil (not
counting the first 5-10,000 miles).


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Old 23 Mar 2005, 05:55 am   #6 (permalink)
m Ransley
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Default Re: Running 5W30 in the Summer instead of 10W30: Any realproblems?

Mobil 1 shear strength is many, many times higher than regular oil
[maybe 5x ? ]. Use 5-30 mobil one. Or ship to me I will even pay
shipping and handling.

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Old 23 Mar 2005, 07:03 am   #7 (permalink)
Richard
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Default Re: Running 5W30 in the Summer instead of 10W30: Any real problems?


"Mark A" <nobody@nowhere.com> wrote in message
news:CJCdnSPBKLDzidzfRVn-hg@comcast.com...
>> >> I have about 15 litres of Mobil 1 5W30 sitting around and was going to

> use
>> >> this in the summer for my 2002 Camry LE V6. I know at operating temp,

> the
>> >> 10W30 and 5W30 are both 30 weight but the sheer strength may be
>> >> thinner

> on
>> >> the 5W30 grade. When temps run about 100 degrees F. or about 40

> degrees C..
>> >> will the 5W30 cause issues with the engine where 10W30 won't? I mean
>> >> I

> can
>> >> always go and get 10W30 but given my driving (85% highway driving at
>> >> 75

> mph)
>> >> and oil change frequency (every 7 weeks or 4,500 miles), I figure it

> should
>> >> be ok.
>> >>
>> >> Any thoughts?
>> >

> You can, and should, use 5W-30 all year around, assuming that your engine
> has not experienced serious engine wear from no using synthetic oil (not
> counting the first 5-10,000 miles).
>

I would also recommend longer change intervals. In the warm weather every
7,500 miles would still be conservative on Mobil 1 given your driving mix.

Richard.


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Old 23 Mar 2005, 01:29 pm   #8 (permalink)
Jason James
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Default Re: Running 5W30 in the Summer instead of 10W30: Any real problems?


"Car Guy" <ac222@hotmail.com> wrote in message
news:xcednTYk-MSpSt3fRVn-uw@rogers.com...
> I have about 15 litres of Mobil 1 5W30 sitting around and was going to use
> this in the summer for my 2002 Camry LE V6. I know at operating temp, the
> 10W30 and 5W30 are both 30 weight but the sheer strength may be thinner on
> the 5W30 grade. When temps run about 100 degrees F. or about 40 degrees

C..
> will the 5W30 cause issues with the engine where 10W30 won't? I mean I

can
> always go and get 10W30 but given my driving (85% highway driving at 75

mph)
> and oil change frequency (every 7 weeks or 4,500 miles), I figure it

should
> be ok.
>
> Any thoughts?


I really don't want to go against what everyone else is saying,...but my '96
Camry's car-owner handbook (which comes with the car when new) has an
oil-grade vs temperature horizontal bar-graph which indicates 5w-30 should
not be used at temperature-maximums below 50 F or 10 C.

Jason


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Old 23 Mar 2005, 02:42 pm   #9 (permalink)
Philip
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Default Re: Running 5W30 in the Summer instead of 10W30: Any real problems?

Jason James wrote:
> "Car Guy" <ac222@hotmail.com> wrote in message
> news:xcednTYk-MSpSt3fRVn-uw@rogers.com...
>> I have about 15 litres of Mobil 1 5W30 sitting around and was going
>> to use this in the summer for my 2002 Camry LE V6. I know at
>> operating temp, the 10W30 and 5W30 are both 30 weight but the sheer
>> strength may be thinner on the 5W30 grade. When temps run about 100
>> degrees F. or about 40 degrees C.. will the 5W30 cause issues with
>> the engine where 10W30 won't? I mean I

> can
>> always go and get 10W30 but given my driving (85% highway driving at
>> 75 mph) and oil change frequency (every 7 weeks or 4,500 miles), I
>> figure it

> should
>> be ok.
>>
>> Any thoughts?

>
> I really don't want to go against what everyone else is saying,...but
> my '96 Camry's car-owner handbook (which comes with the car when new)
> has an oil-grade vs temperature horizontal bar-graph which indicates
> 5w-30 should not be used at temperature-maximums below 50 F or 10 C.
>
> Jason


By the same token, your Owners Manaul recommendation is NINE YEARS out of
date. Do you think a 1996 API SH oil is as "good" as a current API SM/SL
oil? ;-)
--

- Philip



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Old 23 Mar 2005, 02:55 pm   #10 (permalink)
Jason James
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Default Re: Running 5W30 in the Summer instead of 10W30: Any real problems?


"Philip" <1chip-state1@earthlink.n0t> wrote in message
news:%wk0e.2245$z.229@newsread2.news.atl.earthlink .net...
> Jason James wrote:
> > "Car Guy" <ac222@hotmail.com> wrote in message
> > news:xcednTYk-MSpSt3fRVn-uw@rogers.com...
> >> I have about 15 litres of Mobil 1 5W30 sitting around and was going
> >> to use this in the summer for my 2002 Camry LE V6. I know at
> >> operating temp, the 10W30 and 5W30 are both 30 weight but the sheer
> >> strength may be thinner on the 5W30 grade. When temps run about 100
> >> degrees F. or about 40 degrees C.. will the 5W30 cause issues with
> >> the engine where 10W30 won't? I mean I

> > can
> >> always go and get 10W30 but given my driving (85% highway driving at
> >> 75 mph) and oil change frequency (every 7 weeks or 4,500 miles), I
> >> figure it

> > should
> >> be ok.
> >>
> >> Any thoughts?

> >
> > I really don't want to go against what everyone else is saying,...but
> > my '96 Camry's car-owner handbook (which comes with the car when new)
> > has an oil-grade vs temperature horizontal bar-graph which indicates
> > 5w-30 should not be used at temperature-maximums below 50 F or 10 C.
> >
> > Jason

>
> By the same token, your Owners Manaul recommendation is NINE YEARS out of
> date. Do you think a 1996 API SH oil is as "good" as a current API SM/SL
> oil? ;-)
> --


True,...but I would love to know what a current owner's h/book recommends
for grade vs temp, plus (and I know we've been over this before) I not
impressed with the ease synthetic oil suffers 'channeling' in an older
generation engine.

Jason

Jason


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