Question about Isuzu i-Series
It is a bit new to have a serious oil problem.
Never heard of a "referential" seal. I am familiar with rear main seal and differential seal.
But first you need to find the leak.
The thing to do is steam clean the engine so that you can see better.
(avoid heat or water around alternator, starter, ignition, etc)
Then put cardboard under it.
Also a bad PCV can cause excess crankcase pressure that forces oil out.
Top valve cover gasket is very common.
Rear main seal will come out from bell housing bottom.
You might also want to consider thicker oil, like Castrol 20W-50.
Oil pressure sending units also often leak.
Filter could be not sealing right, due to things like left over seal, etc.
Posted on Mar 12, 2011
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Posted on Jan 02, 2017
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