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> the type and weight of the oil is Castrol 20w/50 I used to have the oil light on at idle with a hot engine (say, when stopping for fuel from the highway on a hot day) when using 20w-50 oil. Thinner oil flows through the cooler more freely. I now prefer 30-grade for that reason, but other factors such as higher air temperatures may be different for you. Dave. UK VW Type 3 & 4 Club http://www.hallvw.clara.co.uk/ ------ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org