Doc007 Posted December 3, 2022 Share Posted December 3, 2022 Before or after hibernation?Discuss... Link to comment Share on other sites More sharing options...
Amos91 Posted December 3, 2022 Share Posted December 3, 2022 After, no point having new oil sat there. Link to comment Share on other sites More sharing options...
TomB Posted December 3, 2022 Share Posted December 3, 2022 If hibernating for a couple of months over winter, I can’t imagine it makes any difference at all. If going into long term storage it’s a different matter. Link to comment Share on other sites More sharing options...
StevehS3 Posted December 3, 2022 Share Posted December 3, 2022 I don't know which is best but I change mine before hibernation. My thoughts are that the new oil will never be 'old' anyway as I change it twice a year and the start up in spring is the most critical so I would prefer to have new oil for that. Link to comment Share on other sites More sharing options...
OldAndrewE Posted December 4, 2022 Share Posted December 4, 2022 If you are going to change the oil then before hibernation is the time to do it. The main issue with oil is becoming contaminated with combustion products so best to get rid of these before the engine stands idle for some time. If you want to be really careful then warm up the old oil, drain, refill and circulate oil on the starter without starting the engine. This may, however, all be a bit OTT if your oil is not very old to start with. Link to comment Share on other sites More sharing options...
GulfSeven Posted December 4, 2022 Share Posted December 4, 2022 My service is due in the spring so it gets done after. Not the most technical reason, but at less than 3k miles a year I doubt it matters. It's not like the oil that comes out is black. Link to comment Share on other sites More sharing options...
Area Representative Geoff Brown Posted December 4, 2022 Area Representative Share Posted December 4, 2022 IMO after hibernation. Nice fresh clean oil & new filter for the season. Cannot see a problem. In my case 2000 mile 'old' oil/filter waiting till 2023. The carbon/contaminant content will be acceptably low.I carry out anti-det runs once a month during the Winter lay up. A personal habit that comes from having worked with Winter stored piston engined aircraft. Gas turbines can go longer between anti-det runs but still require them. And it is fun waking them up! Did change my ten year old gear box oil & two year old Tracsport LSD oil in September as weather conditions to drive out & get the box/LSD warm can be a barrier. This action reduces my service time in March. Link to comment Share on other sites More sharing options...
Jonathan Kay Posted December 4, 2022 Share Posted December 4, 2022 "If you are going to change the oil then before hibernation is the time to do it. The main issue with oil is becoming contaminated with combustion products so best to get rid of these before the engine stands idle for some time."Sounds right to me.Jonathan Link to comment Share on other sites More sharing options...
Area Representative Geoff Brown Posted December 4, 2022 Area Representative Share Posted December 4, 2022 One makes individual informed choices............Seems a waste of good clean oil to leave over Winter unless the engine usage in miles is high. In this case I would insist on changing the oil again before the season to wash out residual contaminants.Either way, clean or used oil a cold unused engine will attract moisture.Of course there is the alternative - fogging oil or storage oil but then one cannot fire up regularly during the Winter period. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now