Within the last 200+/- miles, I have noticed a change in the oil pressure readings (according to my gauge). My '87 300TD normally ran at 3 bars with the slightest of drop at lower RPMs. Now, it moves sooner to 2 and even drops slightly lower than that at times. I was running Mobil 1 5w30 until changing oil & filter this morning. This time I put Mobil 1 10W30 and found the same oil pressure readings as prior to the change. No oil consumption and I am changing at between 3-4,000 miles.

Any thoughts on what this may indicate? The engine has 136,000 miles.
Thanks
Steve

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Steve
'87 300TD - 132K - Soon 4-Sale
'84 300D Turbo - 122K - Driving
'77 VW Type II - 77K - Restored
'08 250EX Ninja
English Bulldog (Brier) - My best friend. Passed away 12/02/04 while in my arms.