Recent content by deafwish

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    NMMA Marine 25w40 - Penrite

    An analysis done at 10 hours, following a salt water hydrolock. Got the engine oil flushed quickly and all seems good. Was in a Volvo Penta 5.7GL (350 Chevy) with flat tappet camshaft. Cheers.
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    NMMA vs Performance Oils

    Thanks again for the advice, team! As I'll be winterising the boat next week, will my aerosol fogging oil leak past the rings and contaminate my crankcase oil? Cheers.
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    NMMA vs Performance Oils

    Hi guys, Do the NMMA oils have a tacky additive to assist in 'sticking' to internal components? Most locally available HDEO 15w40's have similar ZDDP's (1300 ppm) to the NMMA 25w40 that I currently use, whereas the 10 Tenths Racing 15w50 has significantly more (1680 ppm), high VI, PAO/ ester...
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    NMMA vs Performance Oils

    Thanks for the prompt response. Given all IC engines create moisture, surely no engine oil (PAO/ Ester) would be hydroscopic?!
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    NMMA vs Performance Oils

    Hi all, I've been running an NMMA Approved 25w40 in my Volvo Penta 5.7GL (flat tappet cam) and would prefer to be using a similar viscosity oil, with a better ZDDP additive pack. My boat is kept on a trailer and thoroughly flushed with fresh water after each use in both salt and fresh water...
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