Thanks Bob. I am leaning towards the 75-140 synthetic. Although
temperature rarely (never) goes below zero in Auckland and max in summer is
around 26/28C, I do a lot of highway driving some weeks of the year. One
of our clients is about 125 kms away (round trip 250 kms). Dealer is
closed today, I'll see if they are open tomorrow for some advice. I don't
pull any trailers at all. Just some steep hills and highway speeds. We
are heading towards winter.

I was just checking the www.mobil.co.nz website and they recommend three
Mobil 1 oils: Mobilube SHC 75W-90 / Mobilube SHC 80W-140 / Mobilube HD
75W-90 for a '01 Jeep Wrangler. I think I'll stick to Mobilube SHC 80W-140
and add the additive in the rear for LSD.

Hopefully this solves the issue before it becomes a big problem ($$$).

Thanks for all your help.
TW


"Robert Brace" <rlbrace@shaw.ca> wrote in message
news:t2mdc.55219$Ig.15274@pd7tw2no...
> TW:
> From this and your other posts, it sounds as if "stiction" could be
the
> problem. Good excuse to change the fluid in any event. I don't know
what
> DC's recommendations are for the '01 but for the '03 Rubi they say to go
to
> the 75-140 synthetic for heavy usage such as trailer pulling. The DC
> dealers up here (Canada - West Coast) carry it under the Chrysler - Jeep
> brand (Chryco I think). Their mentioning of trailer pulling and heavy
usage
> tells me it will most likely have better hi-temp characteristics. With
the
> 75 low end, it should flow better at low temps as well (don't know about
the
> range needed in NZ though).
> Hope that helps, have a good holiday.
> Bob
>

 

It is almost for sure your rear differential. I would change the fluid and
be sure the additive is in it. Synthetic for your type of driving is not
necessary, but you can use it if you want.

Tom

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:c54daq$6ab$1@news.wave.co.nz...
> "Joseph P" <jpribeat@nc.rr.com> wrote in message
> news:7nedc.15268$Ll3.200637@twister.southeast.rr.c om...
> > Do you have drum brakes in the back?? If so, they always have some
> > residual pressure on them by design, you could have some valving going
> > bad, or the shoes are sticking for some reason. Good luck with that.
> >
> > --
> > --
> > Joe Pribe
> > NC
> > jpribe 'at' nc.rr.com <you know the drill
> > jegp 'at' hotmail.com < at is really @
> > ---- I Love My O|||||||O TJ
> >
>
> I have Dana 44 and drum brakes in the back. Because of Dana 44, I have no
> ABS brakes (I am so glad).
>
> Would it be possible for both sides in the back to develop sticking valves
> and shoes at the same time? I had never noticed this noise before this.
> Can I take the drums off and clean everything with brake clean or
> something? Would that help? I am trying to save money for suspension and
> tyre upgrade, so don't really want to go to the shop unless I really have
> to. Thanks for your help and suggestions.
>
> Cheers,
> TW
>

 

It is almost for sure your rear differential. I would change the fluid and
be sure the additive is in it. Synthetic for your type of driving is not
necessary, but you can use it if you want.

Tom

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:c54daq$6ab$1@news.wave.co.nz...
> "Joseph P" <jpribeat@nc.rr.com> wrote in message
> news:7nedc.15268$Ll3.200637@twister.southeast.rr.c om...
> > Do you have drum brakes in the back?? If so, they always have some
> > residual pressure on them by design, you could have some valving going
> > bad, or the shoes are sticking for some reason. Good luck with that.
> >
> > --
> > --
> > Joe Pribe
> > NC
> > jpribe 'at' nc.rr.com <you know the drill
> > jegp 'at' hotmail.com < at is really @
> > ---- I Love My O|||||||O TJ
> >
>
> I have Dana 44 and drum brakes in the back. Because of Dana 44, I have no
> ABS brakes (I am so glad).
>
> Would it be possible for both sides in the back to develop sticking valves
> and shoes at the same time? I had never noticed this noise before this.
> Can I take the drums off and clean everything with brake clean or
> something? Would that help? I am trying to save money for suspension and
> tyre upgrade, so don't really want to go to the shop unless I really have
> to. Thanks for your help and suggestions.
>
> Cheers,
> TW
>

 

It is almost for sure your rear differential. I would change the fluid and
be sure the additive is in it. Synthetic for your type of driving is not
necessary, but you can use it if you want.

Tom

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:c54daq$6ab$1@news.wave.co.nz...
> "Joseph P" <jpribeat@nc.rr.com> wrote in message
> news:7nedc.15268$Ll3.200637@twister.southeast.rr.c om...
> > Do you have drum brakes in the back?? If so, they always have some
> > residual pressure on them by design, you could have some valving going
> > bad, or the shoes are sticking for some reason. Good luck with that.
> >
> > --
> > --
> > Joe Pribe
> > NC
> > jpribe 'at' nc.rr.com <you know the drill
> > jegp 'at' hotmail.com < at is really @
> > ---- I Love My O|||||||O TJ
> >
>
> I have Dana 44 and drum brakes in the back. Because of Dana 44, I have no
> ABS brakes (I am so glad).
>
> Would it be possible for both sides in the back to develop sticking valves
> and shoes at the same time? I had never noticed this noise before this.
> Can I take the drums off and clean everything with brake clean or
> something? Would that help? I am trying to save money for suspension and
> tyre upgrade, so don't really want to go to the shop unless I really have
> to. Thanks for your help and suggestions.
>
> Cheers,
> TW
>

 

It is almost for sure your rear differential. I would change the fluid and
be sure the additive is in it. Synthetic for your type of driving is not
necessary, but you can use it if you want.

Tom

"TW" <a t t w @ w a v e . c o . n z> wrote in message
news:c54daq$6ab$1@news.wave.co.nz...
> "Joseph P" <jpribeat@nc.rr.com> wrote in message
> news:7nedc.15268$Ll3.200637@twister.southeast.rr.c om...
> > Do you have drum brakes in the back?? If so, they always have some
> > residual pressure on them by design, you could have some valving going
> > bad, or the shoes are sticking for some reason. Good luck with that.
> >
> > --
> > --
> > Joe Pribe
> > NC
> > jpribe 'at' nc.rr.com <you know the drill
> > jegp 'at' hotmail.com < at is really @
> > ---- I Love My O|||||||O TJ
> >
>
> I have Dana 44 and drum brakes in the back. Because of Dana 44, I have no
> ABS brakes (I am so glad).
>
> Would it be possible for both sides in the back to develop sticking valves
> and shoes at the same time? I had never noticed this noise before this.
> Can I take the drums off and clean everything with brake clean or
> something? Would that help? I am trying to save money for suspension and
> tyre upgrade, so don't really want to go to the shop unless I really have
> to. Thanks for your help and suggestions.
>
> Cheers,
> TW
>

 

Thanks Tom. I'll change the oil this weekend as soon as I can find any
auto shop open. Its against the law for shops to remain open on Good
Friday and Easter Sunday in New Zealand..

If the price difference is not huge, I'll go with synthetic.

Cheers,
TW


"mabar" <mabar@NOSPAMgbronline.com> wrote in message
news:v_Cdnb_eVbh7bOjd4p2dnA@gbronline.com...
> It is almost for sure your rear differential. I would change the fluid
and
> be sure the additive is in it. Synthetic for your type of driving is not
> necessary, but you can use it if you want.
>
> Tom
>

 

Thanks Tom. I'll change the oil this weekend as soon as I can find any
auto shop open. Its against the law for shops to remain open on Good
Friday and Easter Sunday in New Zealand..

If the price difference is not huge, I'll go with synthetic.

Cheers,
TW


"mabar" <mabar@NOSPAMgbronline.com> wrote in message
news:v_Cdnb_eVbh7bOjd4p2dnA@gbronline.com...
> It is almost for sure your rear differential. I would change the fluid
and
> be sure the additive is in it. Synthetic for your type of driving is not
> necessary, but you can use it if you want.
>
> Tom
>

 

Thanks Tom. I'll change the oil this weekend as soon as I can find any
auto shop open. Its against the law for shops to remain open on Good
Friday and Easter Sunday in New Zealand..

If the price difference is not huge, I'll go with synthetic.

Cheers,
TW


"mabar" <mabar@NOSPAMgbronline.com> wrote in message
news:v_Cdnb_eVbh7bOjd4p2dnA@gbronline.com...
> It is almost for sure your rear differential. I would change the fluid
and
> be sure the additive is in it. Synthetic for your type of driving is not
> necessary, but you can use it if you want.
>
> Tom
>

 

Thanks Tom. I'll change the oil this weekend as soon as I can find any
auto shop open. Its against the law for shops to remain open on Good
Friday and Easter Sunday in New Zealand..

If the price difference is not huge, I'll go with synthetic.

Cheers,
TW


"mabar" <mabar@NOSPAMgbronline.com> wrote in message
news:v_Cdnb_eVbh7bOjd4p2dnA@gbronline.com...
> It is almost for sure your rear differential. I would change the fluid
and
> be sure the additive is in it. Synthetic for your type of driving is not
> necessary, but you can use it if you want.
>
> Tom
>