08 May 12 07:25, TOM WALKER wrote to ROY WITT:

 RW>> MH> I would think that when it is cold outside, the oil would still
 RW>> go
 RW>> MH> down and cause that lifter noise on startup.

 RW>> Unless your engine had a block heater. That would keep the oil at a
 RW>> warmer temp.

 RW>> MH> I'm not aware of a 30w-30, but that might cause other issues.

 RW>> There isn't one. 30w is 30w no matter what the temp is.

 TW> Plud if the problem is that the Oil on cold startup is too thick it
 TW> woudl seriously complicate the porblem by using a straight 30 weight
 TW> in place of a 10-30 or 5-30

If it were a high-mileage engine (which it isn't), 30 weight engine oil
wouldn't do any harm. But it's a newly rebuilt engine, supposedly with
tight clearances as engines are inclined to be these days, 30 weight oil
might be detrimental to bearings on cold startup days as well.


                R\%/itt


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