Originally Posted By: stranger706
Originally Posted By: dlundblad
What weight of oil do these take? Is it thin like ATF?
Also, what is the capacity and service intervals?
Thanks for the awesome pics btw.
Its very thin. It would be 0w10 or 0w5 in car terms. But its very different oil. Completely different add packs than cars.
The service intervals are thousands of hours. We just take samples, check or change the filters, and top off. This is the norm for modern jets.
Mobil Jet II has a viscosity @ 100°C of 5.1 cSt, which puts it in the new proposed "SAE 8" grade. In spite of its very low viscosity it has a pour point of -75°F, a flash point over 500°F, and a Noack of about 5%. It is based entirely on POEs, specifically a pentaerythritol type polyol ester, and contains anti-oxidants, anti-wear, and anti-corrosion additives. In addition to seal issues as Stranger706 noted, these jet engine oils do not contain any detergents, dispersants, or anti-rust additives and are not suitable for automotive engines.
Tom NJ