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Old 06-25-2003, 12:32 AM
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Burning Oil... HELP

Would using too thin of an oil cause the exhaust to come out blue under hard accelleration? Or is it always the rings/seals? If it is the oil is it probably too late to repair the damage done by it... if it is the oil i was just planning on changine oil and plugs...

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Old 06-25-2003, 02:27 AM
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hmmmmm

i would think that a high viscosity oil could contribute to oil blow by in the cylinders..... i had a vw once that if you went higher than 40 wt, it would smoke unmercifully. but you could put in 5w30 or plain 30 wt, and really tell a difference. for the price of an oil change, you can't beat the chance to find out.....

but blue smoke, isn't that an over rich indication? usually a good oil smoke is a whitish-grey color.......
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Old 06-25-2003, 05:08 PM
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Hard acceleration blue smoke usually means that your dumping to much fuel in and your 'flooding' the engine and incomplete combustion creates the hydrcarbon particulates that we see as blue smoke. (Sorry I paid attention in Science class)

try leaning out the mix a little, and if dat dont work and the oil change dont work, do a compression test, if the results are crap then do a leak down test to determine valve or rings.

tests can save a lot of time if done right.

then you'll know if its a head job, or pull the motor type job.

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Old 06-25-2003, 09:31 PM
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Black smoke: fuel
White smoke: water/coolant
Blue smoke: Oil
NO smoke: You forgot to start it.
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