30wt can come as either detergent or non-detergent.
Last year when I was setting up my air compressor it specified
non-detergent. It wasn't easy to find. In fact, it wasn't at any
auto parts store. I did find it finally at a handyman type shop, that
sells compressors, small engines, tools etc.
TheBritt80@aol.com wrote:
> It looks like everyone is right on the 20wx50 and also on the straight 40w or
> rather straight 30w which I use. Most European cars use straight 30 , 40 or
> etc. The real point I think was told to me by a fellow who rebuilds O/D and
> regular four speeds transmissions. The 20wx50 will work, but your tranny has
>more
> possibility of leaking. The straight 30w has less chance as it is a
> NON_DETERGENT oil. I took his advise and a O/D tranny from him. It has been
>it three
> years; no trouble and no oil on the floor.
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