[Healeys] Does synthetic oil leak more?

[warthodson at aol.com]

All I am saying is I find a lot of this hard to believe. For example: Synthetic oil has much better cleaning properties, flows much better than conventional oil, and hence also lubricates much better than conventional oil. "Much better" sounds good but is not very scientific. How much better, scientifically speaking? Just changing oil regularly does what you are taking about & none of it has to do with leaking unless you are counting on "sludge & gunk" to plug the leaking holes. Good Luck! Careful rebuilding including paying close attention to applying sealants where applicable, like bolt/screw threads when they are in contact with the oil will make a big difference. Re-tightening all the bolts after a break-in period will also assist. Gary Hodson


 From: Harold Manifold 
Sent: January 11, 2020 10:53 AM
To: warthodson at aol.com; 050.rpl at gmail.com; healeys at autox.team.net
Subject: Re: [Healeys] Does synthetic oil leak more?  Hello,   All of your observations are a factor. Here are some comments from an article about synthetic oil leaks:   Synthetic oil WILL NOT cause leaks. It may however make already worn-out gaskets/seals more evident, by leaking past them, and/or cleaning any sludge and other gunk that was sealing the existing leak. This is because Synthetic oil has much better cleaning properties, flows much better than conventional oil, and hence also lubricates much better than conventional oil (This is a good thing).   I use a GL-4 synthetic gear oil in my transmission and it leaks. Believe it not not one of the leak mechanisms is from the interior along the bolts and drips from the bolt head on the exterior. I am changing the gaskets on my transmission and trying bonded sealing neoprene washers on the fasteners.   I may be pursuing the impossible dream of a leak free Healey.... Harold    From: warthodson at aol.com [mailto:warthodson at aol.com] 
Sent: Saturday, January 11, 2020 7:24 AM
To: manifold at telus.net; 050.rpl at gmail.com; healeys at autox.team.net
Subject: Does synthetic oil leak more? I am not a leak expert, but I find this hard to understand. For there to be a leak there has to be a hole. Is it because the synthetic oil molecules are smaller than the non-synthetic oil molecules? Given that the "holes" come in different sizes this seems illogical. Is it because the synthetic oil is more slippery? How is that measured? How much more slippery is it?   Gary Hodson -----Original Message-----
From: Harold Manifold <manifold at telus.net>
To: 'R. Lindsay' <050.rpl at gmail.com>; 'Healey List' <healeys at autox.team.net>
Sent: Fri, Jan 10, 2020 7:55 pm
Subject: Re: [Healeys] Rear Axle Oil 
The biggest difference you will notice with synthetic gear oils is they leak
more than non-synthetic.    _______________________________________________
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