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roy4matra
YaBB God
Posts: 1211
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« Reply #52 on: May 18, 2013, 12:05:08 pm » |
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It's an old car so cheap 15W40 mineral should be fine but I refresh every year or 5000 mile. I dont use full synthetic bacause I don't know what is do with the seals but I hear that some have no problem with it.
regards Herman
I have to disagree strongly here, but I'm not getting at you particularly Herman, as this is a popular misconception repeated often. Cheap oil will give cheap results and is not as good for any engine as good synthetic oil. I have also seen this statement about synthetic oil and seals BUT never once seen any proof to back up the claim. Show me some categorical test results showing the synthetic oil to have been detrimental, and I might believe there have been some problems, but what I can tell you from personal experience is that I have used semi- and full-synthetic oils in engines range from modern to pre-war with no problems. Yes, we are using synthetic oil in a 1936 Standard 10 that I have helped restore (doing most of the mechanical and electrical work) and the 'new' seals or gaskets are in fact many years old even though never used before. This engine and gearbox have no leaks or oil problems. I have run my Murena from new on full synthetic oil and the condition of the parts are like new. The great advantage with synthetic oils is they are fluid when cold, as they don't go thicker (due to the waxy elements of normal oils) so they protect during the critical cold/warm up phase. This is when wear generally takes place. Normal oils also have lighter elements which get burnt off or evaporate leaving an oil which gets thicker with age. That is why they need periodic replacement. Synthetic does not have this problem. That is why synthetic can be left in much longer. Do you realise that trucks can have oil change intervals of 100,000 kms if using full synthetic oil? And modern cars often have a 2 year or 30,000 kms interval providing they are using synthetic oil. You would never leave a mineral oil in for longer than 10,000 kms or one year. Many cars used to have even half that interval with normal oil and for good reason. So if your engine or gearbox has major oil leaks, or burns lots of oil, then you need to correct those faults, otherwise you are wasting valuable oil as well as polluting the environment... and wasting synthetic oil is more costly than mineral oil obviously. But that is about the only reason now to use a mineral oil. Roy
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alfafred
Full Member
Posts: 50
Murena 2,2 S
WWW
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« Reply #59 on: February 05, 2014, 01:50:02 pm » |
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Have now finished a service on the brakes. Taken all parts of. Glass blasted all of them. Painted, new rubbers, new pads and new handbrake cable, and flushed the system with lots of brakefluid. Now I can push the car easily on the floor again.
The original alloy wheels are now getting stripped and new silver paint baked on, the new Toyo tires in original dimension are waiting in the garage.
Next: What is the best gear oil to be used on the 2,2S?
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« Last Edit: February 05, 2014, 01:52:38 pm by alfafred »
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