Was just reading thru your thread. Do you have air conditioning with an AC condenser in front of your radiator? I can see the under dash unit.
Could someone supply the brand and number that has this anti drain back valve filter for the 304.
x2, My napa has the same oil, and the same story.
Just done a search. Looks like most all the gl-4 oils are full synthetic, not sure if they are what we need, also some are listed as gl-5 and gl-4...
I think your on the right track. Defiantly need to stay with Gl-4 oil. I have not been able to find it locally either. If your current Gl-4 oil is...
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