SOHC.co.uk Forums > CB750
Clutch plates
McCabe-Thiele (Ted):
--- Quote from: Pauarc on July 08, 2023, 04:52:14 PM ---Can you add zinc to the oil
--- End quote ---
STP would do it in the correct proportion trouble is you do not know the base content before you add it - in reality all good branded oils probably have the right amount as part of the oil specification.
K2-K6:
Shouldn't be any real need to add anything to a decent spec oil for these engine, theyre not too demanding in the various different aspects of protecting all the components.
By far the most critical is oil condition, specifically dilution by excess fueling from too much choke and short runs. Other than that, you'll be very unlikely to run into any problem.
For assurance, start by finding out what the zddp level is of the oil you've used.
Pauarc:
Not sure if it has zddp
K2-K6:
Difficult to find a spec for that oil that says much, either way in respect of zddp presence.
It's definitely a frustrating part of how oil companies promote their product.
Very loosely speaking, any oil used or specified for modern engine that have anything in tbe way of exhaust gas treatment will usually involve lowered content of zinc formulation. This because of longevity in those component with regard to sensitivity to zinc byproduct. They do seem to miss though that a good engine can burn very very little engine oil, making it's presence in exhaust likely extremely low.
McCabe-Thiele (Ted):
--- Quote from: Pauarc on July 08, 2023, 05:55:42 PM ---Not sure if it has zddp
--- End quote ---
Most branded modern oils will contain Zinc as a base line ingredient if you go for something like Miller, Manol, Shell, Castrol, Motul, Mobil, Elf, Silcolene, possibly even Comma they all meet the modern specifications even when not fully synthetic.
Or buy cheap Asda Mineral then add STP as per instructions on the can.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version