Aug 12 2011, 04:20 PM
QUOTE(Fubar20 @ Aug 12 2011, 02:44 PM)
Really? But comparing mineral in 5k and semi syn in 5k, surely semi syn is better because it degrades slower than mineral. So, for the price that we are getting is worth it.
Been reading up a lot on engine oil lately and have chatted with ppl in the oil line.In reality, mineral, semi and fully all have to service at 5K. Minyak boleh tahan but most if not all uses the same amt of addictives within the same brand. Thus if mineral can last only 5K, the same with semi and fully. Semi usually uses the same base oil as the mineral with addition of abt 10% (in general) of synthetic base oil in semi. So mineral and semi practically last the same 5K only although semi supposedly provide better lubrication (better lubrication does not equal extending service time)
Those that extended the use, runs the risk of addictives wearing off. Once worn, addictives will be gone. Anti-rust, anti-wear, anti-bonding (or something like that, prevents contaminant from combining to become sludge), etc will no longer be in effect. You can still use it but the damage to the internal engine....you can figure it out...sludge, wear, etc.
Fully Syn (FS) is a bit different coz most of our fully syn is using Group 3+ hydro-cracked mineral. The highest quality of mineral oil, so definitely different from semi and mineral that uses the same base mineral oil. However the amt of addictives is technically still the same, just the synthetic and mineral components different. Once addictives wears out, same damage will be done.
In reality, most oil manufacturer still recommend following original car service schedule for FS change coz they cannot garantee how long their addictives will last (really depends on car engine makes). Some cars uses a larger amt of engine oil with much better and bigger filteration system along with other more efficient components that can slow down the wear rate that might makes FS last longer, maybe 10K to 20K depending on weather, dust, humidity, drive route, etc. I have never of of semi and mineral being recommended by any car manufacturers to last over 5K.
Unfortunely most ppl takes that as norm as uses the 10K mileage meant for those upscale cars and generalize it for all cars. Technically even tho true FS like Redline can hold contaminant longer but unfortunately the addictives still wear out.
This post has been edited by Cavino: Aug 12 2011, 04:21 PM
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Don't be angry lo. It is because you are talk cock king ma. Surely got cock at your mouth. 
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