It says on the tilt/trim pump on the inside of the boat not on the tilt/trim cylinders.. "Only use SAE 20W oil" I wen't to the local automotive shop to look for some and the only thing i could find " SAE 20W" is good old 4 stroke motor oil so i bought a litre of the stuff<br /><br />Here is a link to the stuff<br /><br /> http://www.valvoline.com.au/products_up.cfm?mode=product_info&prod_service_type=DIY&category=FO04 <br /><br />Will this stuff be ok or can oyu recommend a different replacement i.e hydraulic fluid or soemthing<br /><br />Thanks again