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 G11 oil confusion

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msestak
Squinternotto
Squinternotto


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Join date : 2014-04-02

PostSubject: G11 oil confusion   Mon Jun 30, 2014 9:58 am

Hi everyone, I would appreciate a little bit of help from experienced GRiSO riders. Problem is as follows:

I have a early 2006 GRiSO 1100 and have decided to change oil myself. The trouble is, there is no consensus anywhere online on what oil should go inside. The workshop manual says Agip Racing 5W40, but then I have encountered posts referring to a MG service bulletin in which the recommendation was changed to 10W60. Then I have noted on Eni (Agip) website that they recommend Eni iRide(?) 5W-40 for Grisos manufactured in 2005-2006 and 10W-60 in those manufactured in 2006-2009.  Neutral

The latter part confuses me the most - was there a change in the engine in 2006 that required a different grade oil?

Anyway, if someone has a reasonable explanation or simply a straightforward recommendation please share.

Thanks!
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Pete Roper
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 11:02 am

Use a high quality full synthetic. This is the main consideration as the pushrod engines do run hotter in the W5AM bikes than earlier models when running closed loop. FWIW I use a 10/70 in all of 'em.

Pete
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msestak
Squinternotto
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 11:10 am

Pete Roper wrote:
Use a high quality full synthetic. This is the main consideration as the pushrod engines do run hotter in the W5AM bikes than earlier models when running closed loop. FWIW I use a 10/70 in all of 'em.

Pete

Thanks Pete, but what does "high quality" refer to? It's not like there is a label stating medium or low quality oils  scratch 
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Pete Roper
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 11:56 am

You want to go for preferably a PAO full ester synthetic, most of the 'Name' brand 10/60's meet this criteria. Generally speaking the Guzzi pushrod motor used in the 1100's is very easy on its oil, the main exception being the heat. The other thing to be aware of is that flat tappet engines like quite high levels of ZDDP so try and find an oil with a goodly amount in. Many modern oils contain very little as the Zinc and Phosphorous are murder on catalytic converters and while I remain unconvinced that ZDDP in and of itself is vital, (There are other anti scuff additives that can be used.) having higher levels won't do any harm and does offer a degree of protection.

Pete
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msestak
Squinternotto
Squinternotto


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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 12:14 pm

Ok, taking all my research into account, I think I will go with Mobil 1 Extended Life 10W60 which apparently has 1300ppm ZDDP.

Now only to find a proper (and available to me) gearbox/CARC oil  bounce

I was unable to find a proper discussion on this topic, but have found on several occasions that people use 85W-170 gear oil for both?

Any suggestions in this area?
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Pete Roper
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 12:35 pm

Any decent synthetic gear oil will be fine. Guzzi specify something ever so slightly different for the gearbox and bevelbox, I use a 75/90 in both.

I've never seen a 75/170? 75/140 yes, but not a 75/170. I wouldn't want to go to something with that high a hot viscosity, it might have trouble getting into the needles. Really though by going to a higher viscosity than suggested all you are really likely to be doing is robbing yourself of power through frictional losses.

Pete
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msestak
Squinternotto
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 12:50 pm

Pete Roper wrote:
Any decent synthetic gear oil will be fine. Guzzi specify something ever so slightly different for the gearbox and bevelbox, I use a 75/90 in both.

I've never seen a 75/170? 75/140 yes, but not a 75/170. I wouldn't want to go to something with that high a hot viscosity, it might have trouble getting into the needles. Really though by going to a higher viscosity than suggested all you are really likely to be doing is robbing yourself of power through frictional losses.

Pete

Sorry, it was a typo. I meant 140, not 170.

Thanks for your help! I will look for synthetic gear oil which is available and near the specified grade.
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Steak
L'Innominato
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 4:39 pm

I use 75W90 synthetic gear oil in both boxes also. I've been using MOTUL GEAR300, but there are plenty of brands out there in that weight or in 80W90.

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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sgw01
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 5:40 pm

I see Repco has Castrol Edge 10w-60 5L in there latest catalogue for $59
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Grisonut
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 5:59 pm

I run 80/90 in both boxes and it's not gonna hurt anything.

Adding ZDDP in the engine oil is also a good idea for the 8V mill with flat tappets...
My 09's tappets shit the bed at 36K miles, right before I wrecked.
It should not have happened and it's all History now but I can't help to think that if I added ZDDP from new it would have prevent this.
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Pete Roper
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 6:49 pm

It wouldn't of done any harm but I still strongly believe that the failures are not oil related per-se.

Pete
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Steak
L'Innominato
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 6:53 pm

Redline makes a nice ZDDP Additive, or in a pinch, there is always Red STP oil additive.

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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Uzidzit
Tiradritto
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PostSubject: Re: G11 oil confusion   Mon Jun 30, 2014 9:47 pm

just a quick mention on zddp, it is not being removed from oil to be cheap, it destroys cats and o2 sensors in very small amounts.

goes for any zinc compound in oil.

this prob only matters if ya have to pass emmisions
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