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    Senior Member mitsumi's Avatar
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    Question Which oil to use

    good day, just want to ask what can i use in our mirage? here in the Philippines the weather is hot.

    i did try to visit the dealer casa and it will cost me alot. so i decided to visit shell gas station and have a quotation and wonderfully its a quarter of what i should pay for the mitsubishi casa.

    now the question is, since our mirage indicates in the manual to use a 5w-40 shell only has a semi synthetic 5w-40 but offers instead of a 0w-40 full synth, and from my last 5k PMS i went to fully sinthetic. is it ok to use a 0w for topup or should i change the oil in full? and will the 0w-40 work fine with our engine in a tropical country like ours?

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    Moderator inuvik's Avatar
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    Either oil is fine. Here is a thread that discusses oil types used worldwide.

    http://mirageforum.com/forum/showthr...il-Viscosities

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    On that note, i use only real synthetics, royal purple, amsoil, rotella, etc. I stay away from cheap oil and brands who arent "full synthetic" even though the bottle says it is....

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    Quote Originally Posted by namco View Post
    On that note, i use only real synthetics, royal purple, amsoil, rotella, etc. I stay away from cheap oil and brands who arent "full synthetic" even though the bottle says it is....
    That's great, if it's working for you.

    I'm using "Fully conventional" 5W-30 Pennzoil, and it's working for me

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    Um, my mirage specifically states 0w20 right on the cap.... granted im in the USA, as a mechanic oil grades of visocsoty are based on engine tolerances not weather vs engine heat.

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    Quote Originally Posted by namco View Post
    Um, my mirage specifically states 0w20 right on the cap.... granted im in the USA, as a mechanic oil grades of visocsoty are based on engine tolerances not weather vs engine heat.
    The 3A92 has the same tolerances worldwide, in the USA & Canada 0w-20 is recommended for emissions purposes. The engine will reach peak operational temp faster which is the name of the game for emissions. Members that have installed the Kats cartridge heater have shown increased mileage on short trips. Mitsubishi designed the 3A92 to operate in varying conditions which is why worldwide oil specs vary greatly due to availability. As long as you're not trying to run straight 30w at -10 there's no harm in running 0w-20, 5w-20, 5w-30 etc...

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    Quote Originally Posted by namco View Post
    Um, my mirage specifically states 0w20 right on the cap.... granted im in the USA, as a mechanic oil grades of visocsoty are based on engine tolerances not weather vs engine heat.
    I think I might misunderstand this, as a lot of lubricant industry info I have read has made references to different viscosities according to temperature.
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    Quote Originally Posted by Eggman View Post
    I think I might misunderstand this, as a lot of lubricant industry info I have read has made references to different viscosities according to temperature.
    You are right. But, engines are built with specific tolerances. For example my subaru is 5w30, period. If i ran 0w20, even though the heat range is nearly identical, it would eat that oil quicker than if i ran 5w30. Now lets say that subaru is now at 150k miles, all 150k being severe driving, running 5w30 you notice oil loss, putting 10w40 fixes the oil consumption and the motor still runs good. Mainly because the tolerances "new" have been worn down from severe engine use and thus those same gap spaces arent as tight as before. Many of todays cars are showing up with 0w20 standard not because "heat" but tolerances. A newer motor being machined and build tighter together required "thinner" "runnier" oil. You put a thicker oil in that doesnt reach operating temp as required and the engine wears out quicker.

    As far as overseas vs usa, 0-20 heat wise is good for a broad range, but 0w20 is thinner than 5w30 and thinner still than 10w40....

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    Can't you just get a 5W-40 synthetic that's not Shell, though? Why does it have to be Shell?

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    Senior Member mitsumi's Avatar
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    Quote Originally Posted by nickpon View Post
    Can't you just get a 5W-40 synthetic that's not Shell, though? Why does it have to be Shell?
    because thats the only first thing that popped into my mind and its the closes gas station we have here.

    anyways there is another one i heard of but i dont know if its good, have you heard ROYAL PURPLE? is that good instead of shells Helix?

    heres whats available:
    Multi-Grade Oils: SAE 5W30, SAE 10W30, SAE 10W40, SAE 15W40, SAE 20W50

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        click to view fuel log View my fuel log 2015 Mirage GLS 1.2 manual: 26.3 mpg (US) ... 11.2 km/L ... 8.9 L/100 km ... 31.6 mpg (Imp)


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