Synthetic engine oil-what weight?

H

homebase1

New member
Oct 24, 1997
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GMCers
I'm going shopping for synthetic engine oil. Why, I'm not entirely
sure, but it appears I must :-)

Now, please help me out.
I want to put in 20-50 . I'm interested in exactly why I should or
shouldn't !
Please forward your opinions on what I should use.

Thanks
MikeBeaton.............' 77 Kingsley (403)(120,000miles)
Antigonish, Nova Scotia
 
Joe Mondello recommends it. Best reason I know.

>GMCers
>I'm going shopping for synthetic engine oil. Why, I'm not entirely
>sure, but it appears I must :-)
>
>Now, please help me out.
>I want to put in 20-50 . I'm interested in exactly why I should or
>shouldn't !
>Please forward your opinions on what I should use.
>
>Thanks
>MikeBeaton.............' 77 Kingsley (403)(120,000miles)
>Antigonish, Nova Scotia
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
"The beautiful Mohawk Vally"
 
Arch,

Any reasoning(other than personal preference) for your using 15/50? Just
curious as I stated previously my use of 10/30 is purely personal
preference. I've been told(sorry, can't remember the source) that for the
SE US a 15/30 or even a straight 30 weight is best due to our temperate
climate. 10/30 is the closest thing that Mobil1 produces.

Just wondering if I should change...
Patrick

>
> I run Mobile 1 15/50.
>
> In a message dated 4/27/99 7:27:56 PM Central Daylight Time,

>
> >
> > Now, please help me out.
> > I want to put in 20-50 . I'm interested in exactly why I
> > should or shouldn't !
> > Please forward your opinions on what I should use.
> >
>
 
Greetings Mike; For what its worth, I put 20w-50 in the GMC. They
(403/455) were designed for heavier oil vs. 5w-30 in a more modern engine.
I wouldn't worry about using 10w-30 either so long as the temperature is
below 90 F when you use it. I figure I'll do most of my operating time in
the 70s & 80s. If it where much lower, I would have used the 10w-30.
walter bright 76 GB.

- -----Original Message-----
From: Homebase [mailto:Homebase]
Sent: Tuesday, April 27, 1999 8:18 PM
To: gmcmotorhome
Subject: GMC: Synthetic engine oil-what weight?

GMCers
I'm going shopping for synthetic engine oil. Why, I'm not entirely
sure, but it appears I must :-)

Now, please help me out.
I want to put in 20-50 . I'm interested in exactly why I should or
shouldn't !
Please forward your opinions on what I should use.

Thanks
MikeBeaton.............' 77 Kingsley (403)(120,000miles)
Antigonish, Nova Scotia
 
Correction; I used 15w-50 (Mobil-1). Sorry. walt.

- -----Original Message-----
From: Bright, Walter [mailto:paa8394]
Sent: Wednesday, April 28, 1999 11:15 AM
To: 'gmcmotorhome'
Subject: RE: GMC: Synthetic engine oil-what weight?

Greetings Mike; For what its worth, I put 20w-50 in the GMC. They
(403/455) were designed for heavier oil vs. 5w-30 in a more modern engine.
I wouldn't worry about using 10w-30 either so long as the temperature is
below 90 F when you use it. I figure I'll do most of my operating time in
the 70s & 80s. If it where much lower, I would have used the 10w-30.
walter bright 76 GB.

- -----Original Message-----
From: Homebase [mailto:Homebase]
Sent: Tuesday, April 27, 1999 8:18 PM
To: gmcmotorhome
Subject: GMC: Synthetic engine oil-what weight?

GMCers
I'm going shopping for synthetic engine oil. Why, I'm not entirely
sure, but it appears I must :-)

Now, please help me out.
I want to put in 20-50 . I'm interested in exactly why I should or
shouldn't !
Please forward your opinions on what I should use.

Thanks
MikeBeaton.............' 77 Kingsley (403)(120,000miles)
Antigonish, Nova Scotia
 
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