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Mobil 1 0W-40 FS too thick for 1997 Civic? #4815538 07/16/18 11:29 AM
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njohnson Offline OP
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Hey everyone,

Getting ready to change the oil in our 1997 Civic. It calls for 5W-30, and that is what we have been using. Had some left over Mobil 1 0W-40 FS from an oil change in our dad's truck. Around three quarts left over. I was thinking of using it in the Civic. What do you think? Is it too thick?

We have been having temperatures in the 90's around here. I was thinking a little thicker might be better in the heat.

Also, would there be any issues using the Mobil 1 0W-40 with seals that old? I believe the oil pan seal is still the original?

Thanks,

Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815539 07/16/18 11:31 AM
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OVERKILL Offline
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It'll be fine, use it with confidence.


2019 RAM 1500 Sport - Mobil 1 EP 0w-20, FRAM Ultra
2020 Grand Cherokee SRT - Ravenol SSL 0w-40, FRAM Ultra
Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815541 07/16/18 11:31 AM
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rooflessVW Offline
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Sounds good to me. 0W-40s are the Frank's Red Hot of oils.

Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815558 07/16/18 11:45 AM
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maxdustington Offline
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This is BITOG

Nothing is "too thick"

Last edited by maxdustington; 07/16/18 11:45 AM.

99 Toyota Tercel CE 5EFE/C151
Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815579 07/16/18 12:04 PM
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Bjornviken Offline
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No its not, my honda r18 engine can use up to 10w-40.

Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815592 07/16/18 12:21 PM
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Trav Offline
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No problems whatsoever in that engine.


ASE L1, Master. Deutsch Meisterbrief.
Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815626 07/16/18 12:55 PM
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c502cid Online Content
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I use 10w-40 in both my Civics. I'd use that in a heartbeat.


16 F150 2.7 EB 4x4
15 Chev Trax AWD
02 GMC 3500 8.1/Ally DRW 4x4
00 Blazer 4.3 4x4
97/98 Civics
84 Chev K30 454EFI/T400/NP205 DRW 4x4
71 GMC Jimmy 502 RamJet/T400/NP205 4x4
08 Kawi Brute Force 750
Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815659 07/16/18 01:47 PM
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Mr Nice Offline
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No, it will be fine.

Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: Mr Nice] #4815822 07/16/18 05:59 PM
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Astro_Guy Offline
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M1 0w40 is on the "thin" side of 40, so use with confidence.


'01 Volvo V70XC, 247k, 5W-30 M1 EP
'16 Accord, 45k, 0W-20 M1 EP
Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815852 07/16/18 06:32 PM
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JAG Offline
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You would probably be doing it favor by using M1 0W-40, at least in the warm months.

Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815899 07/16/18 07:20 PM
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cheesepuffs Offline
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With age/mileage, bearings accumulate wear. Without disassembling the engine and measuring the bearing clearances, we cannot say how much wear your bearings have. But, at that carís age, thereís bound to be some wear leading to somewhat larger bearing clearances, which leaves more room for a thicker oil anyway. Like others are saying, no sweat. If something happens to that engine it wonít be due to the slightly thicker oil.


2008 Honda Accord Coupe V6
Re: Mobil 1 0W-40 FS too thick for 1997 Civic? [Re: njohnson] #4815909 07/16/18 07:32 PM
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Mitsu_Joe Offline
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That oil will probably be like heaven for your engine.
Those japanese engines are incredibly grateful considering oil and will kinda take anything you throw at them.
With the relatively high Mileage increasing the thickness a bit by choosing a xW-40 oil is exactly the way to go in my mind...


1988 Mitsubishi Galant, Meguin SL 5W-40


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