Which Type of Oil
http://www.opieoils.co.uk/product-fi...-finder-2.aspx
Click on the second panel down (the long blue thing) for oil recommendations for your car ^^^
Click on the second panel down (the long blue thing) for oil recommendations for your car ^^^
Last edited by joz8968; May 20, 2010 at 11:02 AM.
15W is probably okay as its extra thickness when cold helps "fill the gaps" 'and maintain good pressure/lubrication 'twixt bores and pistons.
Your STi has forged pistons see, which, when cold, are slightly contracted, leaving a tad more clearance than when they are up to temp and fully expanded... By which time the 50 "hot" weight will be pressed into action anyway.
Your STi has forged pistons see, which, when cold, are slightly contracted, leaving a tad more clearance than when they are up to temp and fully expanded... By which time the 50 "hot" weight will be pressed into action anyway.
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