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Old 05-01-2012, 10:32 AM   #1
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What oil weight is everyone using for synthetic? Ive got some really bad knocking going on and was told to run thicker oil to help. I was thinkin 10w-30 with some lucas oil stabilizer should help what do yall think?

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Old 05-01-2012, 10:45 AM   #2
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Wow what? "really bad knocking?" If you're running a 5W20 (original spec) oil and you've got knocking it's probably spark knock and you should try a higher octane gas,if it's not that then no thicker oil is going to help "really bad knocking" much and if it made any difference at all it would only be masking a much bigger mechanical problem.
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Old 05-01-2012, 04:27 PM   #3
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Agree with ^ControlFreak about knocking but I run 5w30 Mobil synth.
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Old 05-02-2012, 05:17 AM   #4
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Is anyone running 5W-40 (preferably people up in Canada)? AMSOil has switched their recommendation to their European 5W-40 oil now and stopped recommending all their other lines. Any chance 5W-40 would help with the severe fuel dilution?
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Old 05-02-2012, 05:33 AM   #5
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Next oil change I'm going to Mobil 1 0w40. Can't beat the price for the quality oil.
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Old 05-02-2012, 06:03 AM   #6
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Out of curiousity, what's the price?
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Old 05-02-2012, 06:06 AM   #7

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Next oil change I'm going to Mobil 1 0w40. Can't beat the price for the quality oil.
^^ I recently switched to this. Seems good so far.
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Old 05-02-2012, 07:17 AM   #8
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There is currently a rebate right now on Mobil One until the 15th IIRC. And it was on sale so I got it for $3.70 a quart for 12 bottles. But Most Walmarts carry it for $6.50 or so. You need to go to WalMart.com and find the stores near you that carry it as most don't. Walmart # 004207877
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Old 05-02-2012, 03:31 PM   #9
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Next oil change I'm going to Mobil 1 0w40. Can't beat the price for the quality oil.
I know 0 weight has a larger temp range and in Florida with hot temps most times year round I tend to stay away from the 0 weight but that's just my choice. I been running 5w-30 but after some research should I consider 5w-40? I thought 40 might be too thick but oil weights always confuse which is really better.

Without considering price any opinions between going from 5w-30 to 5w-40 in constant hot weather?
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Old 05-02-2012, 04:04 PM   #10
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Even in Florida you will benefit on cold engine starts from the 0w oil.
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Old 05-02-2012, 04:15 PM   #11
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back home in pr with +80 degs years round = 10w30 = WIN!
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Old 05-02-2012, 04:50 PM   #12
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Its a metal on metal tapping. I already had my valve cover gasket replaced cuz I had oil coming out right at that seal. I grabbed a 10w-30 im gonna give it a shot. Ive just always heard differing views on changing weights

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Old 05-02-2012, 05:44 PM   #13
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Is anyone running 5W-40 (preferably people up in Canada)? AMSOil has switched their recommendation to their European 5W-40 oil now and stopped recommending all their other lines. Any chance 5W-40 would help with the severe fuel dilution?
Talked to one of the mechanics at Mississauga Hyundai at Glen Erin... It was really funny actually found out he lives on my street. But anyway he says its not official but they are slowly recommending people to change their oil to
5W-40. He was saying there should be an official bulletin soon or something.
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Old 05-02-2012, 06:39 PM   #14
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back home in pr with +80 degs years round = 10w30 = WIN!
You would still benefit from a 0w weight oil. It is rated at 32F for the low end.
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Old 05-02-2012, 06:42 PM   #15
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You would still benefit from a 0w weight oil. It is rated at 32F for the low end.
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Old 05-02-2012, 06:43 PM   #16
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There is currently a rebate right now on Mobil One until the 15th IIRC. And it was on sale so I got it for $3.70 a quart for 12 bottles. But Most Walmarts carry it for $6.50 or so. You need to go to WalMart.com and find the stores near you that carry it as most don't. Walmart # 004207877
Red that was a steal.......
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Old 05-02-2012, 10:16 PM   #17
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Is anyone running 5W-40 (preferably people up in Canada)? AMSOil has switched their recommendation to their European 5W-40 oil now and stopped recommending all their other lines. Any chance 5W-40 would help with the severe fuel dilution?
Luke AKA polishprince is running them.
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Old 05-03-2012, 07:54 AM   #18
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You would still benefit from a 0w weight oil. It is rated at 32F for the low end.
the 0w20 it came with was terrible, it had knocking noise when it would warm up. went to the dealer they said they did 10w30 on their oil changes, went to predator performance, where every car they build/tune is at least +600whp and they recommended 10w30 as well. seconds after i started the car after the 1st oil change to 10w the car felt better and the knocking stopped
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Old 05-03-2012, 08:05 AM   #19
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That would be from the 20w end of the temp usage. Also I know the only real performance oriented 0wxx Mobil One oil is the 0w40. The others are aimed at economy and long service. But the 0w40 is aimed at the European market cars.
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Old 05-03-2012, 09:30 AM   #20
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I grabbed a 10w30 mobile one and some lucas oil stabilizer. Gonna run some sea-foam Through it before the change to see if that helps. You think my knock could be a stuck lifter?

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