Whats Difference Between Semi Synthetic And Full Synthetic
Posted 22 March 2012 - 03:42 PM
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Posted 22 March 2012 - 05:47 PM
If you really want the top end oil then you have to look at double ester oils like Motul 300V ot the Gulf comp oils. Both have very high Total Base Numbers for anti-wear properties... But they are not always sutable for all engines as they tend to have a high ash content and no good for cars fitted with DPF...
Posted 27 March 2012 - 05:07 PM
Older engines with high mileages tend to use up fully synthetic oils & burn them off, so can need regular top-ups. That's why semi-synthetic is more suitable for them.
I know this both from personal experience & a very respected race engine builder.
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