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Author Topic: Tune up: Engine Flushing and Engine oil  (Read 16753 times)

Offline Victorb

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Re: Tune up: Engine Flushing and Engine oil
« Reply #15 on: January 11, 2012, 09:25:10 PM »
wow! that's a significant improvement.

i currently use mobil 1 use 0w-40 on all my cars. it sheers down to x-30 weight after a few hundred kms.

til today, i still dont get it. toyota philippines recos 20w-50...

Offline Conan®

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Re: Tune up: Engine Flushing and Engine oil
« Reply #16 on: January 11, 2012, 10:45:29 PM »
wow! that's a significant improvement.

i currently use mobil 1 use 0w-40 on all my cars. it sheers down to x-30 weight after a few hundred kms.

til today, i still dont get it. toyota philippines recos 20w-50...

Yup I've also used Mobil 1 0W40 with my Silvia in the past. It doesn't seem to sheer to a 30 weight in my engine based on my water temps but that's not really conclusive proof. I find the Redline 5W30 to perform better and more so 300V 5W30 which is what I'm currently using.

 

Offline Victorb

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Re: Tune up: Engine Flushing and Engine oil
« Reply #17 on: January 12, 2012, 03:57:26 PM »
thanks conan. i'll take your word for it. will be trying out the motul 300v 5w-30 soon.

Offline batusai_jr

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Re: Tune up: Engine Flushing and Engine oil
« Reply #18 on: January 14, 2012, 05:11:10 PM »
hi i called autoplus and the guy from motul told me that 5w 30 is too thin for a 95 corolla. and suggested 10w 40 instead.

Offline HyperPower™

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Re: Tune up: Engine Flushing and Engine oil
« Reply #19 on: January 14, 2012, 05:43:38 PM »
In 2012 Accent, the best recommended oil is 5w20 for optimum fuel economy (but not to be used in the middle east - due to their warm ambient temperatures). I suppose the 5 deg temp of Xw20 is okay to use here.

@Batusai - 10w40 is okay for better fuel economy. 5w30 would be a good choice as well but having these small differences on weight doesn't really matter for an older engine. As long as it's better protected by "real" ester based stocks, less friction in the process, you can be assured of additional lifespan to your baby. Plus take advantage of the promo, it's well worth it :)
Hyundai Accent 1.4 2012
Hyundai Getz 1.1 2009
Suzuki Celerio 1.0 2010
Mitsubishi Galant VR6 1997
Mitsubishi Galant 2.0 1990
Toyota Corona 2.0 1991

Offline batusai_jr

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Re: Tune up: Engine Flushing and Engine oil
« Reply #20 on: January 15, 2012, 10:43:26 AM »
In 2012 Accent, the best recommended oil is 5w20 for optimum fuel economy (but not to be used in the middle east - due to their warm ambient temperatures). I suppose the 5 deg temp of Xw20 is okay to use here.

@Batusai - 10w40 is okay for better fuel economy. 5w30 would be a good choice as well but having these small differences on weight doesn't really matter for an older engine. As long as it's better protected by "real" ester based stocks, less friction in the process, you can be assured of additional lifespan to your baby. Plus take advantage of the promo, it's well worth it :)
ok, just had a second thought because the guy told me it would leak because it is too thin for a 95 corolla. thank you

Leo C.

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Re: Tune up: Engine Flushing and Engine oil
« Reply #21 on: January 16, 2012, 10:10:03 AM »
ok, just had a second thought because the guy told me it would leak because it is too thin for a 95 corolla. thank you

Does oil viscosity have to do anything with leaks? Oil viscosity is the ability of oil to flow at certain temperatures. Oils have seal swelling additives to help prevent leaks, right?

Offline batusai_jr

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Re: Tune up: Engine Flushing and Engine oil
« Reply #22 on: January 16, 2012, 08:56:26 PM »
Does oil viscosity have to do anything with leaks? Oil viscosity is the ability of oil to flow at certain temperatures. Oils have seal swelling additives to help prevent leaks, right?
that's what i understand... but from what i've heard from motul sales person(i guess) and some other comments in other forums, they told me it would leak because it is too thin... but i'm not sure if that is true

Leo C.

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Re: Tune up: Engine Flushing and Engine oil
« Reply #23 on: January 17, 2012, 10:31:27 AM »
Guys, please help us out here. Low viscosity oil will leak because its thin? Kahit bugahan mo ng hangin yung engine mo, walang mag leak, oil pa kaya?  Baka wrong choice of words lang, di kaya?

The only leak that I can think of is a blow-by.  When after the explosion in the chamber, fuel and air force pass the piston rings into the crankcase especially in an older engine. If the oil is thicker, blow-by is lessened. 


Offline HyperPower™

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Re: Tune up: Engine Flushing and Engine oil
« Reply #24 on: January 17, 2012, 04:00:11 PM »
Maybe if the piston rings were no longer supple (for old engines) and oil pass-leak through the chamber. That's it.

If oil seals are broken, perhaps another reason.

Leo C.

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Re: Tune up: Engine Flushing and Engine oil
« Reply #25 on: January 17, 2012, 04:17:14 PM »
But the oil guy from Autoplus told him that the 5W30 is "too thin for a 95 Corolla" :dontknow:.

Offline HyperPower™

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Re: Tune up: Engine Flushing and Engine oil
« Reply #26 on: January 17, 2012, 07:43:12 PM »
Head gasket oil leaks perhaps? I think AP have had these cases where old gaskets needed to be replaced or hardened seals for that matter and used syn oils. But regardless.

Thinner Synthetic oils do not cause leaks. Period.

Most crude oils being used today by top lube companies is paraffinic. This type is known to resist thinning and sludge forming.  :thumbsup:

@Batusai - some forums tend to give you mythical ideas based on "says who" and "based on my experience" or "my mom told me so" kind of opinion. These are not facts but idiotic ideas created by people who knows-it-all (especially those using google). Son of a Biscuits...  :evilgrin2:

AI is not one of those forums.  :rock:

In fact, i'm just waiting for someone to bash me on my claim if I'm wrong. Who would dare? No one. Because it's the truth  :thefinger:
« Last Edit: January 17, 2012, 07:48:24 PM by HyperPower »

Offline Conan®

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Re: Tune up: Engine Flushing and Engine oil
« Reply #27 on: January 17, 2012, 09:14:12 PM »
But the oil guy from Autoplus told him that the 5W30 is "too thin for a 95 Corolla" :dontknow:.

He probably just wanted to play safe by recommending a viscosity more suited to an engine more than a decade old.

For my Silvia's engine they (Autoplus) recommend either 5W40 or 15W50 (they normally recommend this viscosity for modified engines). But I know my engine well enough to choose 5W30 over the other viscosities.
« Last Edit: January 17, 2012, 09:16:03 PM by Conan® »

Offline batusai_jr

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Re: Tune up: Engine Flushing and Engine oil
« Reply #28 on: January 19, 2012, 07:04:32 PM »
so getting 5w 30 is a good choice for a 95corolla that is overhauled last year? just to clarify- is it safe to use 5w 30?
@conan - yes, maybe he just wanted to play safe - told me " just to be safe, bat di na lang 10w 40 ang kunin mo baka kasi mag leak yun 5w 30 kasi masyadong manipis."

Offline Conan®

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Re: Tune up: Engine Flushing and Engine oil
« Reply #29 on: January 19, 2012, 09:19:59 PM »
so getting 5w 30 is a good choice for a 95corolla that is overhauled last year? just to clarify- is it safe to use 5w 30?
@conan - yes, maybe he just wanted to play safe - told me " just to be safe, bat di na lang 10w 40 ang kunin mo baka kasi mag leak yun 5w 30 kasi masyadong manipis."

You've used 10W30 recently with no problems? If the answer is yes then go ahead and try out the 5W30. If no, there really is no downside either to using 10W40.

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