View Poll Results: when does overfilling become bad ?
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dip stick marks
#1
Newbie
Thread Starter
dip stick marks
Hey,
I know this has been discussed many times in terms of what mark to fill your engine oil up to and the general consensus is to fill to the dipstick full mark, generally safe between low - full marker. Do not overfill.
My question is that if most people are filling close to the full mark at what point could you damage your motor when overfilling ? Like are we talking anything 1mm over the full marker could be catastrophic or is it safe up to 5mm over the full mark ? does this greatly vary with different strokers ? I'm using a full tomei 2.3 stroker kit/factory oil cooler and sump. I use 20/50 oil as it leaks less lol.
I ask as I have a locally built stroker motor thats been running for a while and it likes to chew and leak a little oil/has done for years (i think its mainly the sump that leaks more so than burning) So I regularly give it a slight top up and sometimes I'm not exactly accurate on what I put. (I know fix the leak right ? time poor..). Currently the oil reading is about 3mm over the full marker on dipstick (level ground, measured when warm after car has sat for ~45min. Measured with car off).
Should I be worried with it overfilled by 3mm (0.1 inch) ?
I know this has been discussed many times in terms of what mark to fill your engine oil up to and the general consensus is to fill to the dipstick full mark, generally safe between low - full marker. Do not overfill.
My question is that if most people are filling close to the full mark at what point could you damage your motor when overfilling ? Like are we talking anything 1mm over the full marker could be catastrophic or is it safe up to 5mm over the full mark ? does this greatly vary with different strokers ? I'm using a full tomei 2.3 stroker kit/factory oil cooler and sump. I use 20/50 oil as it leaks less lol.
I ask as I have a locally built stroker motor thats been running for a while and it likes to chew and leak a little oil/has done for years (i think its mainly the sump that leaks more so than burning) So I regularly give it a slight top up and sometimes I'm not exactly accurate on what I put. (I know fix the leak right ? time poor..). Currently the oil reading is about 3mm over the full marker on dipstick (level ground, measured when warm after car has sat for ~45min. Measured with car off).
Should I be worried with it overfilled by 3mm (0.1 inch) ?
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MinusPrevious (Oct 10, 2018)
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onlynamenotused (Oct 10, 2018)
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onlynamenotused (Oct 10, 2018)
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onlynamenotused (Oct 10, 2018)
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kyoo (Oct 10, 2018)
#7
Newbie
Thread Starter
totally agree and given that I have spun a bearing in the past an aftermarket pan is an item very high up on my shopping list. Sadly money is hard to come by in WA currently.
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#8
Evolved Member
iTrader: (29)
yup - for hpde's i would run full but probably not ideal for oil starve potentials - that said, i was always on street tires and not crazy fast.
i've since upgraded the pan to a ~6.5qt capacity, and comfortably run with the oil juuuust under max, at the lower angle of the max wedge of the dipstick
i've since upgraded the pan to a ~6.5qt capacity, and comfortably run with the oil juuuust under max, at the lower angle of the max wedge of the dipstick
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MinusPrevious (Oct 10, 2018)
#10
EvoM Guru
iTrader: (1)
OP, run the engine at the full mark or a little over, you're not going to hurt anything. Autocross guys routinely run 1qt overfull to try to prevent oil starvation.
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onlynamenotused (Oct 11, 2018)
#12
Evolved Member
iTrader: (27)
I go 5.5qt, oem pan, buschur baffled, few mm over line and the car pretty much just sees straights. OP your OCD might be worse than mine If you bend the tube it can read off too, when I bent mine to go behind the magnus intake it was way off (FYI in case yours isn’t stock in stock location).