Oil leak...

1. 52

   dannyallitposted 13 years ago

   Oil leak...
   
   just bought mazda 5 2007 last january 25 2012.. after about 6 weeks, notice oil only up to low level, top up til high level. but last sunday(13th may), oil level was below low level and I cant hardly see if theres oil.. notice oil on top of engine, mechanic thinks that coming from gasket seal on top of engine as cant see any problem anywhere, engine sound very good.. advice me to put oil stop leak,, good advice please.. thanks..

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2. 73

   Pavlo Badovskyyposted 13 years ago

   I have Mazda 6 2005. I could not find were it leaks untill i removed the protective cover beneath the engine compartment. It is easily done , no even need to go to mechanic. 4 or 6 screws removed and then you see the bottom of engine. Besides if it leaks it is collected first of all in the proterctive cover untill it goes over the rims of it. Try it

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3. 52

   dannyallitposted 13 years ago

   thanks mate.... ya, but leak coming out from top of engine(front) where the bolt of engine cover.. thats what the mechanic says,... but still looking for any advice.. what do you think, 15w-40 is ok or i`d rather changed to 5w-30, more heavier oil....????

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   1. 71

      ttagpineposted 12 years agoin reply to this

      15w-40 is thicker than 5w-30. 15w-40 is mostly used in hot weather like summer in desert areas. It is thicker & may slow down the leakage. If you use it in very cold weather, it may be a little harder to start the car.

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   2. 52

      dannyallitposted 12 years agoin reply to this

      Thanks, ttagpine...that's what I thought, 15w-40 is better but took my car to where I bought and asked them what oil is best to  used, they advice me to used 5w-30.. Not satisfied though. Checked Mazda website what recommended, it says 5w-30..

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   3. 71

      ttagpineposted 12 years agoin reply to this

      5w-30 is recommended for most cars. It's a good all-around oil & helps to get better fuel mileage. Your engine has a leak. I strongly suggest fixing the leak. If that's not an option, then a thicker oil might slow the leak. Stopleak is a last eff

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   4. 52

      dannyallitposted 12 years agoin reply to this

      Yes, leak has been done( 4 injection seal) and glad that no more leak at this time... That's why they recommend to used 5w-30..  Although, engine oil still going down a bit, so need to top up sometime.. Mechanic can't find anymore leak,,,

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4. 71

   ttagpineposted 12 years ago

   From your description, it sounds like the valve cover gasket is leaking. These are generally easy & cheap to replace. Have you asked your mechanic how much it would cost to fix it?
   Stop leak is OK on old, high mileage cars with many leaks that aren't worth the cost to fix them, I wouldn't recommend Stop leak if the car has less one hundred thousand miles on it. That's just my opinion.

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   1. 52

      dannyallitposted 12 years agoin reply to this

      And engine runs well, no smoke or any smell coming out.. So at this no worries, just checked oil regularly...

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