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What plugs and oil?

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Old Dec 29, 2011 | 04:12 PM
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From: crewe
Default What plugs and oil?

Hi guys just wondering what spark plugs/oil i need for my wrx bug, as i'm planning on servicing it while i'm off work. It's been remaped to 280bhp/270lbs torque.

Also when i had the car custom mapped. It was mapped without the under bonnet intake scoop being on.

I've recently bought and fitted the under bonnet air scoop that fits to the std airbox. Would this cause any problems with the map??

Kev
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Old Dec 29, 2011 | 04:48 PM
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the oil i use in my classic sti is 15w 50 in the winter and 10w 40 in the summer mobile 1 that is
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Old Dec 29, 2011 | 05:00 PM
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Try the Opie Oils website. Probably the best choice and deals around, Fuchs or Miller is the choice. Millers Semi-synthetic CSS 10W40 is less than £30 for 5 litres.

or get the Service kit from Import car parts for £77 + depending on plug choice.

1 x Oil Filter ADL Bluprint
1 x Sump Washer
1 x Fuel Filter
1 x 5 Litres Millers Motorsport CFS ( Option )
4 x NGK Spark Plugs ( Option )

NGK Plugs Standard Heat Range PFR6B

Oil Filter is the new Small Filter Subaru's Part number for Reference ONLY: 15208AA12A


I change mine every six months but use the same grade each time.

Depending on level of mod's the NGK Iridium get good reviews. The heat setting will depend on mod's but make sure they are gapped, don't always believe the "pre-gapped" labelling, they do rattle around in the packets.

Last edited by The Trooper 1815; Dec 29, 2011 at 05:09 PM.
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Old Dec 29, 2011 | 05:12 PM
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As above, the service kit and I upgraded to PFR7s on a similar spec car to yours

http://www.japanesecarimports.net/pa...en=&searchKey=
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Old Dec 29, 2011 | 06:29 PM
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Originally Posted by hixxys STI
the oil i use in my classic sti is 15w 50 in the winter and 10w 40 in the summer mobile 1 that is
Even though Mobil 1 is great oil, why do you use a 15w/50 in the winter when it has been designed for use in ambient temperatures of between 15 degrees and 50 degrees?

In other words why do you recommend an oil that is as thick as tar in cold weather and will give your cold British engine virtually no cold start protection in the winter weather and is more suited for Southern European summer temperatures at the upper end and then use an oil in the summer that is better suited to colder starts (though not as good as a 0w or 5w) with an upper temperature range of 40 degrees?

Surely it would be better to use a 0w or 5w/30/40 in the winter to aid cold starts and a 10w40/50 in the summer, depending on how hard you drive the car, i.e trackdays?

Just in case I haven't made any sense please read this:

http://www.upmpg.com/tech_articles/motoroil_viscosity/

Last edited by Twin Fields; Dec 29, 2011 at 06:42 PM.
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Old Dec 29, 2011 | 06:33 PM
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Originally Posted by Twin Fields
Even though Mobil 1 is great oil, why do you use a 15w/50 in the winter when it has been designed for use in ambient temperatures of between 15 degrees and 50 degrees?

In other words why do you recommend an oil that is as thick as tar in cold weather and will give your cold British engine virtually no cold start protection in the winter weather and is more suited for Southern European summer temperatures at the upper end and then use an oil in the summer that is better suited to colder starts (though not as good as a 0w or 5w) with an upper temperature range of 40 degrees?

Surely it would be better to use a 0w or 5w/30/40 in the winter to aid cold starts and a 10w40/50 in the summer, depending on how hard you drive the car, i.e trackdays?
Been advised not to use a 0w oil in scoobs. I use 5w 40 pro s personally.
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Old Dec 29, 2011 | 07:15 PM
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From: crewe
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Originally Posted by The Trooper 1815
Try the Opie Oils website. Probably the best choice and deals around, Fuchs or Miller is the choice. Millers Semi-synthetic CSS 10W40 is less than £30 for 5 litres.

or get the Service kit from Import car parts for £77 + depending on plug choice.

1 x Oil Filter ADL Bluprint
1 x Sump Washer
1 x Fuel Filter
1 x 5 Litres Millers Motorsport CFS ( Option )
4 x NGK Spark Plugs ( Option )

NGK Plugs Standard Heat Range PFR6B

Oil Filter is the new Small Filter Subaru's Part number for Reference ONLY: 15208AA12A


I change mine every six months but use the same grade each time.

Depending on level of mod's the NGK Iridium get good reviews. The heat setting will depend on mod's but make sure they are gapped, don't always believe the "pre-gapped" labelling, they do rattle around in the packets.
Thanks for the help guys.

Trooper that is awesome thanks!! Will check that site out now and will use the 10/40 oil
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