
Originally Posted by
alainroyce
if you use synthetic oil as early as 1k PMS your valve and piston will not seat or fit properly.. this is recomended by all engine producer.. the effect of this to your vehicle is you have a loose valve/piston... you will notice this upon start of your engine a white smoke will emitted to you exhaust... correct me if im wrong to this... here is the Guide for synthetic oil...
Guide to use synthetic engine oil:
No synthetics during the running-in period: Wear and tear is actually good for a new engine. Synthetic oil, with its superior lubricating properties, hinders the running-in process and is best used only after 10,000 – 15,000 km.
The right grade: It is vital that you choose your engine oil based on the grade your manufacturer recommends. If your owner’s manual suggests a 10W–40 grade oil, make certain that you use that only.
Engine flush before change: We suggest using an engine flush before switching from conventional to synthetic oil. Please be advised that some older / high-mileage engines do not take well to engine flushing, so it is best to check with a competent mechanic before proceeding.
Extended oil change intervals?: Even though most synthetic oil brands boast of extended oil change intervals, It is recommended that you still change your engine oil every 7,500 – 10,000 km. Driving conditions in the streets of Dhaka put a lot of stress on your engine with low average speeds, bumper-to-bumper traffic and harsh environmental conditions.
The right filter: It is surprising how many counterfeit auto parts are on the market. Use only high-quality OEM oil filters, preferably bought from authorized service stations. You must change your oil filter with every oil change.
Diesel engines: Diesel engines benefit as much from synthetic oil as petrol engines. However, and especially for diesel engines, it is very important for you to match the synthetic oil grade with the one recommended by your manufacturer. Some synthetic lubes may have very high petrol engine standards, but not necessarily so for the diesels.
hope this will help....
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