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ez30r oil change suggestion on used JDM motor #4526597
09/26/17 10:44 AM
09/26/17 10:44 AM
Joined: Jan 2007
Posts: 448
va
dx92beater Offline OP
dx92beater  Offline OP
Joined: Jan 2007
Posts: 448
va
I am getting a JDM Subaru ez30r flat 6 engine installed in my Subaru Tribeca that is supposed to have 48k miles. Even if it does have low miles, I hear that life on a JDM engine is much tougher because the Japanese know they have to toss their engines anyways due to regulations so they don't maintain their engines.

I used Castrol Edge 10w-40 HM to reduce the consumption in the old engine a USDM ez30r (bad head gaskets plus bad rings/valve stem seals/valve seals etc.) and it would burn a quart every 1500 miles as opposed to a quart every 800 miles with Rotella 5w-40 T6.

What might a good plan/oil be this time around? I figure that I should just let the shop change the oil the first time and use that as a flush and then go with ???

Thanks

Last edited by dx92beater; 09/26/17 10:54 AM.

Galant VR4, Talon TSI AWD, Forester XT, Caravan AWD, Focus, GMC Truck
Re: ez30r oil change suggestion on used JDM motor [Re: dx92beater] #4527059
09/26/17 07:52 PM
09/26/17 07:52 PM
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
See what it does with the shop fill and adjust accordingly


2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
Re: ez30r oil change suggestion on used JDM motor [Re: dx92beater] #4527744
09/27/17 05:10 PM
09/27/17 05:10 PM
Joined: Aug 2003
Posts: 2,296
NJ
bluesubie Offline
bluesubie  Offline
Joined: Aug 2003
Posts: 2,296
NJ
FWIW, Subaru Japan does allow up to 5W40 in the H6. Not sure if the driving conditions are all that different though. Sticking with one oil for several intervals seems to have a bigger impact on my consumption than brand or viscosity has had.


'04 Subaru Forester 2.5XT
Castrol Edge High Mileage
Re: ez30r oil change suggestion on used JDM motor [Re: dx92beater] #4527841
09/27/17 07:04 PM
09/27/17 07:04 PM
Joined: Jul 2003
Posts: 4,746
New Zealand
Silk Offline
Silk  Offline
Joined: Jul 2003
Posts: 4,746
New Zealand
Having had to deal with JDM's for 30 years here, you just never know what you are going to get. They always look in better condition than a same year and mileage NZ new car, but they are either fastidiously maintained, or as you say, the car is going to be off the road in 7 years, so they do nothing. In the early days we got anything going, these days we have buyers over there picking good from bad, so most stuff we get is very good.


1987 BMW R65 - Penrite V Twin 20/50
2005 Nissan Expert - Gulf Western 10W-40
1996 Volvo T5 - Penrite HPR15 - 15W-60. Ryco syntec filter.
Re: ez30r oil change suggestion on used JDM motor [Re: SilverFusion2010] #4539370
10/10/17 05:05 PM
10/10/17 05:05 PM
Joined: Jan 2007
Posts: 448
va
dx92beater Offline OP
dx92beater  Offline OP
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Posts: 448
va
Originally Posted By: SilverFusion2010
See what it does with the shop fill and adjust accordingly


This shop didn't tell me what they did. Their English wasn't the greatest.

They did say to change the oil out at 1000k miles, so they have a clue IMO.


Galant VR4, Talon TSI AWD, Forester XT, Caravan AWD, Focus, GMC Truck
Re: ez30r oil change suggestion on used JDM motor [Re: bluesubie] #4539374
10/10/17 05:08 PM
10/10/17 05:08 PM
Joined: Jan 2007
Posts: 448
va
dx92beater Offline OP
dx92beater  Offline OP
Joined: Jan 2007
Posts: 448
va
Originally Posted By: bluesubie
FWIW, Subaru Japan does allow up to 5W40 in the H6. Not sure if the driving conditions are all that different though. Sticking with one oil for several intervals seems to have a bigger impact on my consumption than brand or viscosity has had.


That is true. I wonder if I might consider the RT6 I have laying around here. Fuel economy is pretty bad as is....21-22mpg if you are careful tops.

Since this thing is a family vehicle, I think that I'll sacrifice fuel economy for better engine protection when warm.

Any harm in using a HM oil for a cycle or two if there aren't any leaks?


Galant VR4, Talon TSI AWD, Forester XT, Caravan AWD, Focus, GMC Truck
Re: ez30r oil change suggestion on used JDM motor [Re: Silk] #4539377
10/10/17 05:10 PM
10/10/17 05:10 PM
Joined: Jan 2007
Posts: 448
va
dx92beater Offline OP
dx92beater  Offline OP
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Posts: 448
va
Originally Posted By: Silk
Having had to deal with JDM's for 30 years here, you just never know what you are going to get. They always look in better condition than a same year and mileage NZ new car, but they are either fastidiously maintained, or as you say, the car is going to be off the road in 7 years, so they do nothing. In the early days we got anything going, these days we have buyers over there picking good from bad, so most stuff we get is very good.


Some encouragement at least. Lucked out and got a good engine or so it seems.


Galant VR4, Talon TSI AWD, Forester XT, Caravan AWD, Focus, GMC Truck
Re: ez30r oil change suggestion on used JDM motor [Re: dx92beater] #4539492
10/10/17 07:34 PM
10/10/17 07:34 PM
Joined: Sep 2009
Posts: 16,006
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,006
OH
I've bought one JDM take-out.
It had around 30K and a nice compression check and came with a new timing belt to install.
It was also incredibly dirty inside.
A few short drains got rid of most of the visible crud and the engine went on to lead a long and happy life.
My impression is that many JDM engines have been subjected to extreme short trip urban traffic along with longer than desirable drain intervals.
In a land where motor oil is very costly and where vehicle lives are artificially short, OCIs seem to get extended beyond anything prudent.


17 Forester 12K MSS 0W-20
12 Accord LX 92K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: ez30r oil change suggestion on used JDM motor [Re: fdcg27] #4552334
10/23/17 07:00 PM
10/23/17 07:00 PM
Joined: Jan 2007
Posts: 448
va
dx92beater Offline OP
dx92beater  Offline OP
Joined: Jan 2007
Posts: 448
va
Originally Posted By: fdcg27
I've bought one JDM take-out.
It had around 30K and a nice compression check and came with a new timing belt to install.
It was also incredibly dirty inside.
A few short drains got rid of most of the visible crud and the engine went on to lead a long and happy life.
My impression is that many JDM engines have been subjected to extreme short trip urban traffic along with longer than desirable drain intervals.
In a land where motor oil is very costly and where vehicle lives are artificially short, OCIs seem to get extended beyond anything prudent.


Really interesting. Thanks.


Galant VR4, Talon TSI AWD, Forester XT, Caravan AWD, Focus, GMC Truck

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