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