Re: New available motor oil

Posted by Craig the Clipper Man On 2014/8/18 12:18:59

I have a late '60s Olds 442 oil pump in my '55 and as far as I can tell, I have no problems with the pressure. I have recently developed other problems, though. I have at least one sticking hydralic lifter that chatters away when the car is cold and until I hit speeds of about 50 mph. This racket started back in late April and a change of oil hasn't made any difference. Reading the past submittals, it occurs to me that I may be using too heavy an oil, in this case, Joe Gibbs 15-50. I have been running about 6 quarts, which is slightly overfilled. On Saturday, I took the Clipper to Jiffy Lube and had them drain a couple of quarts out of it and add a quart of MMO. I haven't noticed any discernible difference at this time, but it hasn't been in the engine for long. I thought I'd run it with the MMO for about a month or so, then drain it and fill it with a lower weight oil, drive it again for a while and change it once again in Octobe, changing the filter with each oil change. Does this make sense to anyone?

Craig