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seems like everything would grow. whether it all grows in equal proportions is the question. I never thought of it in this context before either. if the case walls grow every which way, as a tank does when heated then the question would be if the oil and the components extending into the oil grew more. I am still convinced that I/we are over looking something structural in how the oil is held in this case. In most case fill rigs (which is how I recall the rfs) the oil is held in the lower end, unlike the ones with a dry or semi dry sump that read higher after it has had a chance to bleed back down from the reservoir (back bones of frames are popular for this). In the case of some of my air cooled hondas you would look to see you had oil to start it, run it a few minutes, shutoff and check the level. It was always lower after the startup and recheck. As the one way valve that keeps the oil up in the reservoir aged it kept less and less up there. KTM just has a different variation on that and therefore gives the advice that they do.

<blockquote data-quote="ossagp" data-source="post: 175169" data-attributes="member: 1650"><p>seems like everything would grow.&nbsp; whether it all grows in equal proportions is the question.&nbsp; I never thought of it in this context before either.&nbsp; if the case walls grow every which way,&nbsp; as a tank does when heated then the question would be if the oil and the components extending into the oil grew more.&nbsp; I am still convinced that I/we are over looking something structural in how the oil is held in this case.&nbsp; In most case fill rigs (which is how I recall the rfs) the oil is held in the lower end,&nbsp; unlike the ones with a dry or semi dry sump that read higher after it has had a chance to bleed back down from the reservoir (back bones of frames are popular for this).&nbsp; In the case of some of my air cooled hondas you would look to see you had oil to start it,&nbsp; run it a few minutes,&nbsp; shutoff and check the level.&nbsp; It was always lower after the startup and recheck.&nbsp; As the one way valve that keeps the oil up in the reservoir aged it kept less and less up there.&nbsp; KTM just has a different variation on that and therefore gives the advice that they do.</p></blockquote><p></p>

[QUOTE="ossagp, post: 175169, member: 1650"] seems like everything would grow. whether it all grows in equal proportions is the question. I never thought of it in this context before either. if the case walls grow every which way, as a tank does when heated then the question would be if the oil and the components extending into the oil grew more. I am still convinced that I/we are over looking something structural in how the oil is held in this case. In most case fill rigs (which is how I recall the rfs) the oil is held in the lower end, unlike the ones with a dry or semi dry sump that read higher after it has had a chance to bleed back down from the reservoir (back bones of frames are popular for this). In the case of some of my air cooled hondas you would look to see you had oil to start it, run it a few minutes, shutoff and check the level. It was always lower after the startup and recheck. As the one way valve that keeps the oil up in the reservoir aged it kept less and less up there. KTM just has a different variation on that and therefore gives the advice that they do. [/QUOTE]

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