IMO, Mobil delvac 1 for full synthetic. Delvac MX 15w40 for mineral based. Find them cheaper than branded oils.

GlennSter,
Does Castrol carry a fully synthetic oil in the Phils? Think the Magnatec is only a Semi-Synth but priced like a full synth! Heard they might introduce Formula R full synth oils soon- is this true?