Totally orsome stuff I was told...I heard of someone driving around with no water in the cooling system. Bestest ever...so I was told. It's possible I tried a free sample, but I think putting 300ml of oil in the engine would've been a better choice.
1987 BMW R65 - Penrite V Twin 20/50
2005 Nissan Expert - Gulf Western 10W-40
1996 Volvo T5 - Penrite HPR15 - 15W-60. Ryco syntec filter.