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Old 02-23-2011, 04:34 AM   #1
Substi555
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Default PLEASE HELP QUICK!!!! OIL Question

Hello, I just have a quick question. Like all Sti's states that they should use 5w-30 motor oil. If i Put in 5w-40 Shell Rotella will I have a lack of performance and lose HP? from it being a heavier oil? thanks
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Old 02-23-2011, 04:49 AM   #2
RRR
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Thats no problem mate. Personally, I feel that 5-30 crap is to thin, 5-40 is better for a turbo engine. I use 10-60 all year round, but I drive it hard.
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Old 02-23-2011, 04:50 AM   #3
Substi555
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but do you feel any hp loss or performance by using 5w-40 instead of 5w-30?
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Old 02-23-2011, 06:29 AM   #4
EdHilario
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lol. Most epic thread in a while. Can't be serious.
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Old 02-23-2011, 06:49 AM   #5
brentorius
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using 5w40 will cause a loss of 0.001% horsepowerz
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Old 02-23-2011, 07:05 AM   #6
Substi555
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i dont see it as a stupid question. oh wait yo wouldnt know cause you have an rs(non turbo) so no need for shell rotella
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Old 02-23-2011, 10:53 AM   #7
omz
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it's epic in the sense that you are in the wrong forum.
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Old 02-24-2011, 04:51 PM   #8
XanRules
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and that you didn't read the thousands of threads saying that Rotella T6 is one of the best oils you can put in these motors, turbo or not.
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Old 02-25-2011, 04:18 AM   #9
RRR
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Quote:
Originally Posted by Substi555 View Post
but do you feel any hp loss or performance by using 5w-40 instead of 5w-30?

You will feel the difference if you run that 5-30 **** hard and brake your bearings. Cause thats what youre risking for that extra 2 hp.
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Old 02-25-2011, 03:58 PM   #10
Runera
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superserial serious though you will be fine. there is no noticeable loss of power and it will protect your engine better.
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