Oils aint oils ?
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  1. #1
    XTC
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    Default Oils aint oils ?

    Which one to use when ?

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    Mobil 1 0W-40
    Mobil 1 10W30
    Mobil 1 5W-50
    Mobil 1 15W-50

    Price range from $60 to $90

    - xTc -
    You're not fooling everyone, or did you forget? .......




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  2. #2
    1000+ Posts Fordman's Avatar
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    Your owners manual should give you the recommended viscosity range for your engine. It may be dependent on the ambient temperatures where and when you are driving.

    Renault recommend 15w-50 for the Scenic 2.0 litre which in my opinion is a good range for Australian conditions.
    However if I lived in Canberra for example (cold winters) I would probably use 5w-50.

    You may already know this but for general basic info for anyone reading this:
    The lower the number, the "thinner" the oil, and vice versa.
    In cold temperatures, or when the engine is first started, the thinner oil can better move around the engine while the engine is cold (eg 5w,10w,15w)
    But in hotter temps (and when the engine warms up) the low viscosity oil would get too "thin" and not lubricate the engine, so you need a higher viscosity (eg 30w,40w,50w)(Real oil!).

    Multigrade oils combine the properties of a range of viscosities. Eg, 10w-50 means that when cold the oil acts like 10w and when hot it acts like 50w.

    Mobil 1 is fully synthetic so they can obtain a very wide range of viscosities. You won't find 5w-50 in a non-synthetic oil.

    If I was doing lots of highway driving I would definitely use a 50w upper level.
    I think the lower level depends on the engine design and the ambient temp.

    Hope this is of some assistance.

  3. #3
    Fellow Frogger! DejaVu's Avatar
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    also, i was getting some noise from the engine, so i moved to Pennzoil 5W-50 full synthetic, and this eliminated alot of the noise and i felt the engine liked this oil much much better.
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  4. #4
    who? when? huh? GTI124's Avatar
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    Quote Originally Posted by XTC
    Which one to use when ?

    Mobil 1 0W-40
    Mobil 1 10W30
    Mobil 1 5W-50
    Mobil 1 15W-50

    Price range from $60 to $90

    - xTc -
    In your car, I'd be using 5w-50, but I'd be recommending BP Visco in 5W-40 over 5W-50.
    - Lincoln

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    XTC
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    Quote Originally Posted by GTI124
    In your car, I'd be using 5w-50, but I'd be recommending BP Visco in 5W-40 over 5W-50.
    mmmmmm currently it's using Mob1 5W-50W. I'm about to do a self oil change this week and was just looking at oil options. Hence the question.
    You're not fooling everyone, or did you forget? .......




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  6. #6
    sans witticism SLC206's Avatar
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    Quote Originally Posted by XTC
    mmmmmm currently it's using Mob1 5W-50W. I'm about to do a self oil change this week and was just looking at oil options. Hence the question.
    I'd probably be using 5w40 too - although there is nothing wrong with Mobil 1. Some people carry on like it is the devil incarnate.
    Regards,

    Simon

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    Gone Fishin' Ray Bell's Avatar
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    Nothing wrong with it? Doesn't it come from dirt?

    I'm sure Brocky was on TV revealing all...

  8. #8
    who? when? huh? GTI124's Avatar
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    Quote Originally Posted by SLC206
    I'd probably be using 5w40 too - although there is nothing wrong with Mobil 1. Some people carry on like it is the devil incarnate.
    Which is why I tend to recommend the readily available BP products which do well in oil tests I've seen. They're as good and cheaper.

    Nothing overly wrong with Mobil 1 5w-50, I just think the range of that oil can only have a compromising affect.
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    1000+ Posts Fordman's Avatar
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    Quote Originally Posted by Ray Bell
    Nothing wrong with it? Doesn't it come from dirt?

    I'm sure Brocky was on TV revealing all...
    If my memory serves me correctly, Brocky was advertising Mobil 1 as being better than mineral oils because "they" (mineral oils) came from the dirt. ("Would you use an oil that comes from the dirt??" - wasn't that it?).
    Mobil 1 being fully synthetic was apparently all clean & healthy!

    Personally I use Shell Helix Plus 15w-50 (semi-synth) at about $25.00 per 5 litres as I went off Mobil 1 when it jumped to $60 for the same amount. It also seems to be right for every car in the family including the LPG one.

    BTW, Ray, I don't take much notice of the current Shell ads which liken clean engine oil to filling up your engine with beautiful cleansing sea-water or something equally stupid! Sounds worse than Mobil dirt!

    Cheers.

  10. #10
    Moderator Alan S's Avatar
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    Have a read, make your own informed decision.

    http://www.chris-longhurst.com/carbi...oil_bible.html


    Alan S
    If it ain't broke, use a 12" shifter.....that usually does the trick!!

  11. #11
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    Default Thanks Allan

    That was very imformative.

    Graelin

  12. #12
    Gone Fishin' Ray Bell's Avatar
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    Originally posted by Fordman
    If my memory serves me correctly, Brocky was advertising Mobil 1 as being better than mineral oils because "they" (mineral oils) came from the dirt. ("Would you use an oil that comes from the dirt??" - wasn't that it?).
    Mobil 1 being fully synthetic was apparently all clean & healthy!

    Personally I use Shell Helix Plus 15w-50 (semi-synth) at about $25.00 per 5 litres as I went off Mobil 1 when it jumped to $60 for the same amount. It also seems to be right for every car in the family including the LPG one.

    BTW, Ray, I don't take much notice of the current Shell ads which liken clean engine oil to filling up your engine with beautiful cleansing sea-water or something equally stupid! Sounds worse than Mobil dirt!
    Yeah, that's a bit weird...

    My point was, however, that it's not only 'mineral' oils that come from dirt... and what's a 'mineral' oil anyway?

    Shale oil would be mineral, but your everyday Saudi crude, we're told, is decomposed dinosaur. That's hardly mineral!

    So what would 'synthetic' oil be made from anyway? There's very little that doesn't come from dirt, after all, and even if it's from some vegetation, that grows in dirt all the same.

    For my money, Brocky got his hand dirty for nothing...

  13. #13
    Fellow Frogger! whitegoshawk's Avatar
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    Quote Originally Posted by Ray Bell
    Yeah, that's a bit weird...
    I suppoes its like 'organic' vegetables in the supermarket. I am looking to buy some 'inorganic' vegetables to compare what they taste like...

    Quote Originally Posted by Ray Bell
    For my money, Brocky got his hand dirty for nothing...
    Was that before or after the Energy Polariser?

    whitegoshawk (pretend butter comes from pretend cows)
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  14. #14
    sans witticism SLC206's Avatar
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    Quote Originally Posted by whitegoshawk
    I suppoes its like 'organic' vegetables in the supermarket. I am looking to buy some 'inorganic' vegetables to compare what they taste like...
    I'm with you, whitegoshawk.

    For years I've been looking for inorganic veggies, but I just can't seem to find any
    Regards,

    Simon

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