Question about 1998 Land Rover Range Rover

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Range rover 4.6 v8 loosing oil but no oil leak?

I had an engine rebuilt a year ago and ever since i am loosing oil and am putting 1litre in about every 500miles.
no black smoke
no leaks any where

i have been told to check rear main seal? and intake manifold gasket?
also possibly crankcase breather filter?

im not a mechanic,please help

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  • ash_arav Feb 08, 2009

    thanks for that!



    thats fine but should i not hear a difference in engine sound if the pistons have crack/ed?



    thank you

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Hi if you park your car on a level surface do you have any patches on the floor?
If you do then it would point to Front or rear main seal. However it is a very common fault on 4.0l and especialy 4.6l to crack piston rings. The sumptoms are high oil useage and mostly no trace of oil leak and normaly no signs of smoking either.
Thanks Rob.

Posted on Feb 08, 2009

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How many miles have you done on the new engine? it sounds to me the oil rings, are still beding to the new sleves. When you say no smoke, how do you know that? it would be under high load in the mid to upper rev range that it burns oil, very hard to see from inside the car.
Just keep driving, keep an eye on the oil level and the usage should start to reduce as the rings bed in. Use a 15/40 grade. (You should be abe to go to a 10/40 on a new engine.)

Posted on Mar 21, 2011

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