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Post by justyranger on Feb 18, 2008 21:46:10 GMT -5
This is to everyone,
I just picked up an '89 Justy. Being that it runs at higher rpm's on the highway, what weight oil would be best? I've never had a three cylinder, high-revving engine before. I plan to run a severe duty filter. I'm not sure what oil to run. Does anyone know what Subaru recommends? Also, any opinions of the CD manual on e-bay? It claims to cover everything.
Thanks,
justyranger
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coal
Lets roll. When I get rollin.
Posts: 468
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Post by coal on Feb 19, 2008 1:37:06 GMT -5
I would go with a 10-30 in winter and a 10-40 in summer. Change more frequently if you show signs of fuel diluting the oil.
The cd is useable, it is just a real pain to navigate through and some of the pictures and diagrams are not very clear.
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Post by redmavis12 on Feb 19, 2008 7:41:47 GMT -5
I use 10W-30 in the winter and 20w-50 in the summer. For me, this works out to about 3500 miles between oil changes. In the past I had used 10W-30 year-round, but then had problems with low idle oil pressure in the summer...switched to 20W-50, now no more problems. You are wise to find the best quality oil filter you can since the Justy oil pumps are prone to failure...no sense helping it to fail with dirty oil. I've heard bad things about Fram filters .
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Post by pwave on Feb 19, 2008 18:31:55 GMT -5
hi i live in Israel it is 20c -30c here most of the year . I have a 1993 Justy what oil should i use ?
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coal
Lets roll. When I get rollin.
Posts: 468
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Post by coal on Feb 19, 2008 21:09:03 GMT -5
Try a synthetic 5-30 or maybe a 0-30. I really only recomend that if the engine is healthy. with little or no leaks.
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SeattleJusty
No, a boxer will not fit in a Justy.
Posts: 1,587
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Post by SeattleJusty on Feb 19, 2008 23:38:01 GMT -5
Try a synthetic 5-30 or maybe a 0-30. I really only recomend that if the engine is healthy. with little or no leaks. I would stay away from synthetics guys. I have had nothing but bad experiences using synth oils in cars that were not intended to use them. The trouble is that synthetics have excellent lubricity despite their relatively low viscosity.... oh yeah, viscosity, did I mention that synth oil is super thin?! Synthetics have a tendency to slip right past rings and if your engine is loose, past the valve guides too. Let's face it, if it isn't recently rebuilt, then a Justy engine is a loose engine! The synth oils burn so clean that you don't smell it and you won't see any smoke coming out the tailpipe, because there isn't any! Yet you are still burning oil just the same. If the Justy weren't cursed with a 3 quart sump, I would throw advice to the wind and let you learn for yourself but this could cost you your engine seeing as being a quart low in a Justy is standing on the razor's edge. I am not flapping gums either, all of this I say is based on personal experience. Twice I have had friends bring their cars to me to inspect for mysterious oil loss and both times I found they had recently switched to synthetic lubes. After switching back to dinosaur bones, their oil levels remained static. Also; I agree with RedMavis. I too use 10W30 half the year and 20W50 the other half of the year and with good results. There'ya'go
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Post by pwave on Feb 20, 2008 3:11:56 GMT -5
so what should i take 10 w30 or 20w50?
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coal
Lets roll. When I get rollin.
Posts: 468
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Post by coal on Feb 20, 2008 9:17:38 GMT -5
Looks like most people are recomending 10-30 of some sort, that would probally be a good place to start. You can always adjust if things dont seem to be working out.
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Deleted
Deleted Member
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Post by Deleted on Mar 1, 2008 16:40:12 GMT -5
I have used a combination of synth and conventional oil in my other cars since synths came out. ~25-30%(10W-30) synth in a Mopar inline 6 and a subaru 1.8 H4. They are both old engines and engine designs and they seem to like it. I change my oil regularly, so this is not to extend oil changes but to add a little more lubricity. I also add a LITTLE (2-4 oz.) "engine honey" making sure not to exceed the oil capacity. I have used both the Lucas brand conventional and synthetic oil additives, and the conventional is definitely higher viscosity out of the bottle. The engine honey is supposed to provide greater lubrication at start-up, but I have no quantitative info on that. I am just getting into a complete rebuild on my Justy, and after that I plan on using only synth. I am curious about seattlejusty's experience with synthetics since the viscosity ratings on the bottles are the same. Which is not to dispute that testimonial or digress from this thread too far... there must be a difference in the way the synth polymers work at temperature. I am going to investigate and I will report back when I've got something.
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coal
Lets roll. When I get rollin.
Posts: 468
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Post by coal on Mar 2, 2008 11:52:36 GMT -5
As long as you go up in the letter rating no big deal. However if you go back in the rating that is where a problem could arise. As seing that SM rated oils are pretty much the norm around here then there are no problems.
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Post by ronan on Mar 9, 2008 12:57:14 GMT -5
I routinely use 10w30 in the winter and 10w40 in the summer.
Just a note for PWAVE in ISRAEL, > if I were you< I`d use 10w40 or even a 20w50. I think someone missed out on the fact that your temps are mid 60`s to high 80`s there.
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Post by pwave on Mar 29, 2008 9:02:23 GMT -5
I finally changed my oil i got 20w50 and looks good ... Is there any thing i should look for?
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