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Old 06-06-2019, 11:21 AM   #1
ivid1940
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Hi all,
I just bought a 2001 S40 1.9T with 72,000 km's or 45,000 miles , whats the feeling about using synthetic oils vs conventional oil in that car ?
Thank you,
Dave
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Old 06-06-2019, 01:48 PM   #2
283SD
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I use Mobil 1 in all our cars and yard equipment. My wife's '90 245 has 550,000 miles on it, always used Mobil 1 and we have had it for 19 years. When I did a head gasket change on it last year you could see the cross hatch hone marks on the cylinder walls. I'm sold on Mobil 1.
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Old 06-06-2019, 01:49 PM   #3
woodenpudden
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Quote:
Originally Posted by ivid1940 View Post
Hi all,
I just bought a 2001 S40 1.9T with 72,000 km's or 45,000 miles , whats the feeling about using synthetic oils vs conventional oil in that car ?
Thank you,
Dave
It's a turbo, give it synthetic.
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Old 06-07-2019, 09:37 AM   #4
ovlov760
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I like to use either 0w-40 flavor of Mobil 1 or Castrol synthetic in turbo cars.

Only use Mann or Mahle oil filters.
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Old 06-07-2019, 11:13 AM   #5
DMFWallace
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Redblocks - I run blended or full synthetic, usually a 10w-30 or 10w-40 flavor, don't care about brand. Mann Filters Only.
My 850R - 5w-40 Castrol Edge Syntec Only. Use Mann or Mahle
My XC70 - 5w-40 Castrol Edge Syntec Only. Mahle Filters Only.
My XC90 V8 - 0w-40 Mobil1 Only. Mahle Filters Only.
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'92 944T - Need any 940 parts?
'96 854 GLT - Not mine any more but still in the family
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'97 854R - Waiting to get fixed
'06 XC90 V8 - Family Hauler - Wifemobile
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Old 06-07-2019, 11:25 AM   #6
GeneralBurrito
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No one bringing up Rotella T6? Great oil that's loved by the Subaru community. I'm having no problems with it in my 240 either.
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Old 06-07-2019, 01:05 PM   #7
240-FAN
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When I had my C70, I used Castrol Edge Syntec as well. Sold that vehicle with 332K miles with very little blowby.
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Old 06-07-2019, 01:26 PM   #8
Cwazywazy
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I run 5w40 synthetic diesel oil in my 240s (Either Rotella or Delo) and it seems to work fine. Less than 20 bucks for a jug at wallyworld.
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Old 06-07-2019, 04:09 PM   #9
quillc
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Full synthetic in all my vehicles (1966 to newish).
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Old 06-09-2019, 01:23 PM   #10
bmos
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I've been using LiquiMoly 10W40 MoS2 oil with Mann filters. 6months/5k miles.
I'm planning to send in a sample to Blackstone Oil Laboratories to see how it's treating my engine.

In an NA redblock I'd probably be fine with semi synthetic as long as it was changed every 3k.
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Old 06-09-2019, 02:24 PM   #11
Cwazywazy
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I change my oil anywhere from 5k to 15k.

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Old 06-09-2019, 05:03 PM   #12
alschnertz
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My '01 S40 gets 5W-30 high mileage synthetic blend changed every 5,000 miles. Castrol at $17 / 5-qt jug at WalMart.
Probably could go longer, but that's an easy interval for me to remember.

Car has 235,000 on it now and uses maybe 1/2 quart between changes.
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Old 06-09-2019, 06:00 PM   #13
dl242gt
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In my 93 wagon I use Rotella T6 5-40w. Mann or Mahle filters.
The 82 turbo has used M1 15-50w since I changed it to synthetic at 165k miles.
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1982 242 turbo. 340k miles. Good stuff and lots of rust.
1993 245 Classic, 420k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.
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Old 06-09-2019, 07:50 PM   #14
Mr. V
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I've always used dino oils for my 240, 744 and 940 turbobricks.

Originally I used what was on sale, but since the days of cheap oil are gone I use Wal-Mart's Super Tech brand.

I change frequently, usually every two or three thousand miles, and always use a Mann or Mahle filter.

No issues whatsoever with this maintenance regimen, no failed turbos.

Then again I don't beat the bark off of my turbobricks.
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