Joe Flanagan Posted August 15, 2015 Report Posted August 15, 2015 Is there a period of time you should wait to check the oil after shutting your engine off? I ask this because I think I recall some discussion about it on the forum I frequent for my 56 Chevy pickup. I believe it was said that you should wait a while before checking the oil because about half the oil in the filter canister would migrate back down to the pan, giving you a more accurate reading. Is this true for our MOPARs? Is it true at all? I'm taking a long trip soon and want to keep a close eye on my oil level. Just want to know if I should hang around and wait after shutting the engine down before checking it. Quote
greg g Posted August 15, 2015 Report Posted August 15, 2015 Might make a difference of 3 or 4 ounces or so. Seems to me there is a check valve in there somewhere or else y0u wouldn't need to use a turkey baster to empty the filter canister when you change the filter. Quote
ACJCF2 Posted August 15, 2015 Report Posted August 15, 2015 My 230 will keep a half a quart in the filter can and show 1/2 qt low on the stick. Quote
_shel_ny Posted August 15, 2015 Report Posted August 15, 2015 (edited) My D24 kept oil in the filter canister because the relief valve plunger closes when the engine is shut off. My oil level would read correct as I put the correct amount in starting out. Edited August 15, 2015 by shel_ny Quote
Joe Flanagan Posted August 15, 2015 Author Report Posted August 15, 2015 (edited) That makes sense. If the oil pressure releif valve close when the engine is shut off then I should get a correct reading right away Edited August 16, 2015 by Joe Flanagan Quote
Old School Posted August 16, 2015 Report Posted August 16, 2015 Might make a difference of 3 or 4 ounces or so. Seems to me there is a check valve in there somewhere or else y0u wouldn't need to use a turkey baster to empty the filter canister when you change the filter. Ah, yes, the turkey baster. Quote
_shel_ny Posted August 16, 2015 Report Posted August 16, 2015 That makes sense. If the oil pressure releif valve close when the engine is shut off then I should get a correct reading right away There may be some oil running back from the valve/valve spring area, but should not be enough to get concerned about. Quote
Don Coatney Posted August 16, 2015 Report Posted August 16, 2015 No wonder I see so many shiverlays blocking the gas pumps. They have to wait a half hour extra to get a good dipstick reading. Quote
plymouthcranbrook Posted August 17, 2015 Report Posted August 17, 2015 No wonder I see so many shiverlays blocking the gas pumps. They have to wait a half hour extra to get a good dipstick reading. I thought they were all splash systems. Like my lawn mower Quote
Niel Hoback Posted August 17, 2015 Report Posted August 17, 2015 They have a pressurized system, just not to the rods. There are little "dippers" on the bottom of the rods that scoop up oil in little trays that collect oil from the pan. Not to mention babbit rod bearings. A combination built for self-destruction. Quote
Dave72dt Posted August 17, 2015 Report Posted August 17, 2015 (edited) I was taught to check the oil before starting it for the day. we have a company in the area that has a fleet that the drivers are supposed to do a daily maintenance check on before they move. owner suspected they were a bit lax on actually doing the checks, just putting x's on the list, including checking the oil level. mechanic suggested putting the keys on the dipstick. when drivers couldn't find the keys the next morning and asked owner where the keys were, owner asked driver if they'd checked the oil, all said yes, owner said if they had, they would have found the keys. Edited August 17, 2015 by Dave72dt 1 Quote
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