Oil consumption
Moderators: Rick, Lance Murray
- neema
- 4 Diamonds Member
- Posts: 285
- Joined: Fri Dec 05, 2014 5:43 am
- First Name: Neema
- Aircraft Type: DA62
- Aircraft Registration: N617DC
- Airports: KFAT
- Has thanked: 40 times
- Been thanked: 97 times
Re: Oil consumption
I wanted to revive an old thread to share an interesting observation and see if anyone else is experiencing the same:
In our 42-VI, we'd cruise at 85% and go the 100 hour interval between oil changes adding usually one quart per side for the whole interval.
In a new-to-us DA62, we've used 9 quarts in the past 80 hours between both engines. We keep oil low on the dipstick and backed off from cruising at 85% to 75% with no major difference in consumption. It seems excessive. Anyone else see the same?
In our 42-VI, we'd cruise at 85% and go the 100 hour interval between oil changes adding usually one quart per side for the whole interval.
In a new-to-us DA62, we've used 9 quarts in the past 80 hours between both engines. We keep oil low on the dipstick and backed off from cruising at 85% to 75% with no major difference in consumption. It seems excessive. Anyone else see the same?
- CFIDave
- 5 Diamonds Member
- Posts: 2678
- Joined: Wed Nov 07, 2012 3:40 pm
- First Name: Dave
- Aircraft Type: OTHER
- Aircraft Registration: N333GX
- Airports: KJYO Leesburg VA
- Has thanked: 231 times
- Been thanked: 1473 times
Re: Oil consumption
Wow, 9 quarts in 80 hours for DA62 engines (4.5 quarts per engine)?? That's excessive, and it's bizarre that it's happening with *both* engines. What oil are you using?
On both my DA42-VI and DA62 Austro engines, I've always needed to add only 1 quart/liter of oil in between 100 hour oil changes.
On both my DA42-VI and DA62 Austro engines, I've always needed to add only 1 quart/liter of oil in between 100 hour oil changes.
Epic Aircraft E1000 GX
Former DA40XLS, DA42-VI, and DA62 owner
ATP, CFI, CFI-I, MEI
Former DA40XLS, DA42-VI, and DA62 owner
ATP, CFI, CFI-I, MEI
- janders
- 3 Diamonds Member
- Posts: 112
- Joined: Wed Nov 04, 2020 7:45 pm
- First Name: Jon
- Aircraft Type: OTHER
- Aircraft Registration: N75RZ
- Airports: KGYY
- Has thanked: 206 times
- Been thanked: 44 times
Re: Oil consumption
I'm seeing the same consumption as CFIDave. 1 quart / 100 hours / engine
Current E50P owner
Former C172 and DA62 owner
Former C172 and DA62 owner
- neema
- 4 Diamonds Member
- Posts: 285
- Joined: Fri Dec 05, 2014 5:43 am
- First Name: Neema
- Aircraft Type: DA62
- Aircraft Registration: N617DC
- Airports: KFAT
- Has thanked: 40 times
- Been thanked: 97 times
Re: Oil consumption
CFIDave wrote: ↑Fri Mar 11, 2022 2:04 pm Wow, 9 quarts in 80 hours for DA62 engines (4.5 quarts per engine)?? That's excessive, and it's bizarre that it's happening with *both* engines. What oil are you using?
On both my DA42-VI and DA62 Austro engines, I've always needed to add only 1 quart/liter of oil in between 100 hour oil changes.
That's what I was thinking. Excessive. I missed the ball and the shop filled it with Aero$hell Diesel ultra, too. I'm hoping my 3 remaining quarts get me the next oil change
Now that I think of it, I ordered spare oil liters. Even less than quarts!
- Soareyes
- 4 Diamonds Member
- Posts: 306
- Joined: Fri Feb 28, 2020 12:47 pm
- First Name: Dan
- Aircraft Type: DA42-VI
- Aircraft Registration: N518R
- Airports: KINF
- Has thanked: 231 times
- Been thanked: 191 times
Re: Oil consumption
Oil use in my 2020 Merc/Austros in a DA42; left engine uses more oil than the right.
Left engine: 1.5 - 2 quarts per 100 hours
Right engine: 0.5 - 1 quart per 100 hours
The oil pressure is also always slightly lower on the left engine. No oil leaks noted inside the cowlings.
Left engine: 1.5 - 2 quarts per 100 hours
Right engine: 0.5 - 1 quart per 100 hours
The oil pressure is also always slightly lower on the left engine. No oil leaks noted inside the cowlings.
Current: DA42-V1
Previous: Hang gliders, Paraglider, DA40(x3), Cessna 150 Aerobat, SR22
Previous: Hang gliders, Paraglider, DA40(x3), Cessna 150 Aerobat, SR22
- neema
- 4 Diamonds Member
- Posts: 285
- Joined: Fri Dec 05, 2014 5:43 am
- First Name: Neema
- Aircraft Type: DA62
- Aircraft Registration: N617DC
- Airports: KFAT
- Has thanked: 40 times
- Been thanked: 97 times
Re: Oil consumption
Shop told me it may be a pinched breather. the fact that it's happening both sides makes me skeptical. Nothing coming out of the breather vent either. Nacelles are clean.
We'll find out in a couple weeks
We'll find out in a couple weeks
- vnehess
- 2 Diamonds Member
- Posts: 21
- Joined: Sun Apr 11, 2021 3:34 pm
- First Name: Ron
- Aircraft Type: DA40NG
- Aircraft Registration: N515GG
- Airports: KRHV
- Has thanked: 136 times
- Been thanked: 12 times
Re: Oil consumption
my observation after 9 months owning DA40NG, ~500 hours since new.
oil consumption : 0.5 - 1 quart per 100 hours, shell oil.
oil consumption : 0.5 - 1 quart per 100 hours, shell oil.
- Davestation
- 4 Diamonds Member
- Posts: 250
- Joined: Tue Mar 12, 2019 7:49 pm
- First Name: David
- Aircraft Type: D-JET
- Aircraft Registration: NDJET
- Airports: KFTW
- Has thanked: 103 times
- Been thanked: 100 times
Re: Oil consumption
I don't see any common denominator for oil consumption on both engines (besides overfilling obviously) so you must be looking at dual faults. The oil has to be going somewhere so if they can find no leaks on the engines themselves then they're either burning it (soot on right side) or spitting it out (oil on bottom). The latter may not be as readily apparent so I wouldn't rule out the breather/oil separator system.
- neema
- 4 Diamonds Member
- Posts: 285
- Joined: Fri Dec 05, 2014 5:43 am
- First Name: Neema
- Aircraft Type: DA62
- Aircraft Registration: N617DC
- Airports: KFAT
- Has thanked: 40 times
- Been thanked: 97 times
Re: Oil consumption
Plane came out of service. Shop put in Aeroshell even though Castrol was sitting in the back seat and I asked them to put that in.
They cleaned the breathers and checked for pinching. Still seeing oil consumption. Ordered another 12 pack of Aeroshells. I went through 10 quarts last interval.
Guess we'll just live with it. They recommended not looking into it further.
We usually run the oil low. Like at or just above minimum.
Soot seems to come from power settings more than oil consumption. Our 42-VI was ran at 85% and would leave a good deposit. Engines used 1 quart, maaaaybe 2 every 100 hours.
They cleaned the breathers and checked for pinching. Still seeing oil consumption. Ordered another 12 pack of Aeroshells. I went through 10 quarts last interval.
Guess we'll just live with it. They recommended not looking into it further.
We usually run the oil low. Like at or just above minimum.
Soot seems to come from power settings more than oil consumption. Our 42-VI was ran at 85% and would leave a good deposit. Engines used 1 quart, maaaaybe 2 every 100 hours.