Best Synthetic Grease

[deermagnet]

I don't know about synthetic grease, but Isuzu says our rear drive shaft u-joints require NLGI No. 2 with the M0S2 additive. So that's what I use. Ya can get it anywhere, even Walmart has it.

I just checked the repair manual and that's also the grease they mention for the inner and outer wheel bearings. I suppose if there's a synthetic that says it's an acceptable substitute for NLGI No. 2, it would work just fine.

Mark

[VX crazy]

Thanks, I was wondering more about brands......I was debating ordering royal purple grease or amsoil.....on the rear diff I have never used the additive and my old diff is still running strong in lasturbos vx, had 110k when I sent it to him....

[Ldub]

I've used both Amsoil & Mobil 1 grease with no problems...

I do prefer the minty fresh flavor of...no wait, that was toofpaste...

[tom4bren]

Thanks, I was wondering more about brands......I was debating ordering royal purple grease or amsoil.....on the rear diff I have never used the additive and my old diff is still running strong in lasturbos vx, had 110k when I sent it to him....

I'm confused. you started out talking about grease for the wheel bearings and U-Joints. Now you're talking about the rear differential which takes oil, not grease.

Rekin I'll just have to go with Ldub on this one & recommend 'minty fresh'.

[VX crazy]

I'm confused. you started out talking about grease for the wheel bearings and U-Joints. Now you're talking about the rear differential which takes oil, not grease.

Rekin I'll just have to go with Ldub on this one & recommend 'minty fresh'.

Thanks Tom, I was always talking grease....it was deermagnet that brought up the rear diff so I just said I never used an additive in mine. I am trying to find the royal purple grease which has to be ordered.....I dont need any help on the fluids

[tom4bren]

OK

There was another thread that was kinda bashin RP (which I don't have any experience with anyway). I'd recommend Mobile 1 since I've had good luck with.

BTW, The rear pumpkin does need additive for Limited Slip differentials.

[VX crazy]

OK

There was another thread that was kinda bashin RP (which I don't have any experience with anyway). I'd recommend Mobile 1 since I've had good luck with.

BTW, The rear pumpkin does need additive for Limited Slip differentials.

I know it recommended the additive, and thats why I pointed out that in the other VX I changed fluids out first thing to RP, with NO additive and changed them yearly, 110k miles on it and it was perfect, lasturbo is still running that rear end in his VX....and the current VX doesnt have the additive either....with good synthetics its not been an issue

[tom4bren]

True, Amsoil agrees: http://www.amsoil.com/lit/databulletins/g1968.pdf

Gotta remember tho that the additive isn't necessarily just for reduced friction. The additives are sometimes also referred to as viscosity modifiers because they may be recommended for different purposes: Flow at high temps, flow at low temps, flow at high pressures, adhesion to meshed gears, ...

I don't know the purpose that Isuzu had in mind when they required the additive but it would appear that synthetic lubricants meet that need without the additive.