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I'll do it but I wait till the motor has 10K miles. Everyone seems to have a different opinion on waiting. All I can say is I've done it on my F-XT (and many other scoobies) and my oil analysis says the motor is healthy, so I can say for sure it won't hurt :)
 

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Discussion Starter #3
to save some $$, i'll probably just stick w/ the regular dino oil, its not like the B9 is a performance car or anything, and with gas prices as high as they are, have to try and save $$ somewhere.
 

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to save some $$, i'll probably just stick w/ the regular dino oil, its not like the B9 is a performance car or anything, and with gas prices as high as they are, have to try and save $$ somewhere.
Its sad when oil prices are through the roof and one cannot get Synthetic oil because real oil is STILL cheaper... :tdown:
 

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change to M1

Just change the oil on my B9 (14,600miles) for the second time and this time use M1 15W50 Gold , just wondering if using the 15W50 will make any difference on my B9 engine reliability.

Thanks, :confused:
 

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I doubt it, why did you go so high in viscosity though? I changed mine again yesterday (18K miles) and I used 5W-30, the only negative I can see is your mpg's may suffer slightly. I'm getting better at changing the oil on this thing, no mess at all this time. I do have the oil drain valve though :) Changed the air filter too, it was a lot dirtier than I thought it would be. Doing a Scoobymods page soon for anyone interested.
 

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Yesterday, I did Valvoline synthetic 5-30W for the first time. I had some sticker shock at the $59.95 charge, but listening to some automotive experts over the past few months, they all say synthetic is the way to go to protect your engine.
 

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I did the first oil change to my B9T and used Mobile 1 Synthetic 5W30. It felt like there was a horsepower and torque increase, but maybe my car is just breaking-in a bit. I will probably use Royal Purple next time.
 

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Doing an oil change is one of the reasons I have the Subaru Card, for the Subaru Bucks. Dont want to pay for it, though not willing to do the work that's involved, the bucks was my answer.
 

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Long-time Mobil 1 user here. Switched to M1 5W-30 at 5k miles, as I've done with all the vehicles I've owned over almost the last 15 years. No engine problems whatsover. Just curious - why did you ignore what the owner's manual (and Subaru's engineers) recommend (5W-30)? Nothing to worry about - you won't do any harm to the engine, but you mileage may suffer.
 

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We switched to synthetic involuntarily at about 6k. The gf was going away for a week so she had her mom drop it off at a local dealership that we've never used. When she got back she saw the bill and nearly fell over. Apparently they decided it was time to switch. :tdown: I was planning on holding off until 10k.

Oh yeah, they also decided not to fill it up all the way, so I had to go out and buy another 2 quarts to finish what they started. :tdown::tdown:

$68 oil change that was done wrong. :tdown::tdown::tdown:

BTW the brand they use is Castrol Syntec 5w-30, I'll be swapping out to Amzoil 5w-30 next oil change.
 

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Hi I'm new here.
I just picked up an 08 5seater limited.
The dealership told me Subarus don't work well with synthetic (it actually causes problems with some vehicles). They said just stick with 5w-30 regular.

I'm confused now.
 

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The dealer is handing you a line, our dealer will offer synth with their oil changes if you like. I say wait till 10K to go to synth though.
 

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I have to ask why everyone is suggesting that B9's should go synthetic after 10k? Is there a problem using standard oil for the life of the vehicle?
 

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You will get all sorts of opinions on when to switch. I feel the car needs to use dino oil at first to allow for proper breaking in and mating of the parts. Personally I think synth is too slippery to let this happen effectively. I can say for sure that waiting to switch will not hurt anything as I've had oil analysis tests done on my scooby motors and it shows they are healthy after doing this.

I have some info here:

http://www.scoobymods.com/forums/showthread.php?t=3014

Down the page and my oil analysis here:

http://www.scoobymods.com/forums/showthread.php?t=4718
 

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B9LTD83 said:
Any thoughts on 0w-30?
Generally, the wider the range (0-30 in this case) the easier/sooner the oil will start to shear. If you change your oil every 3,000 miles though (5K km) then you don't really have to worry about it.

0 weight oil is good in the winter if you live in a cold area since it flows more easily.
 

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Mobile 1 everywhere: engine, front diff, tranny, rear diff, OEM coolant, after 4K or 5K - do not remember exactly. I am a big fan of Royal Purple but, here in Boston it is tuff to find it so I've decided to go Mobile 1. My Isuzu VehiCROSS was all Royal Purple and you will not believe me what a difference (milage, noise quality of lube) it makes untill you try it yourself. I got into unfortunate accident in VX tearing apart tranny, rear diff - Mechanic who tried to save VX for me asked me what I've used as he never seen so little wear.....
 

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Hmmm, well I've never used synthetics in any of our cars. Maybe I'll switch when the B9 gets older.
 
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