I have pretty much a stock 99 Galant 3.0 V6 GTZ,and was wondering at what point,if any,do you guys recommend synthetic fluids?..tranny,engine oil,rear end,etc.Or is it even a good idea in an auto transaxle anyway? If you guys use it,what brands,& what viscosity?

 

redline 10-30 , adds up performance.

 

Royal Purple....

 

10-30,or 5-30?

 

OEM says 5W-30 but if your in the colder climate then 10W-30.

 

Where I am in Washington State,we rarely go below 30*

 

I would stick with 5W-30 and if you need to closer to winter switch to 10W-30.

Bro you have any pictures of that Cutlass you have? I been itching to build me another lolo. I have buit a 86 Buick Regal and a 83 Custlass. I am thinking of a Grand National GNX if I can find one or maybe a 68 Impala.

 

I think you have it backwards.

Colder climate = 5W30.

Warmer climate = 10W30.

Great Synthetics = Redline, Mobil 1 EP, Castrol 0W30 (made in Germany)

 

Check out-> http://www.msnusers.com/cutlasscorvetteworkinprogress -(Cutlass & Vette) ...and... http://www.msnusers.com/C3RVETTEHeaven -(for my 79 Vette) ...and... http://www.mitsubishi-forums.com/ind...CODE=12&CID=14 ...-(for my 99 Galant GTZ) ...On the Cutlass,I need to redo the partial vinyl on the roof,& I'm getting real close to re-upholstering the seats.Its been lowered with Hotchkis springs,& for now I have 255-60-15's on it.In the pic,it was lowered,but still had the Olds Rally wheels...225-60-15's


[IMG]local://upfiles/2886/6485E1FD3B0E426199572C123D6BDDFB.jpg[/IMG]

 

so, for warmer climate its 10-30??