My Vitz 2006 model KSP90 1.0L has done approx. 107,000 km and its engine has gone weaker now. It has started reducing oil - approx 450 ml per 3.500 km(every oil change) which is 13% oil reduction per oil change interval. Also it gives white smoke (only) when FULL throttle is applied (but no smoke at all with normal driving)
Experts ,including toyota dealership, have recommended me to switch to 20W50 engine oil to reduce wear and tear (though it will effect fuel consumption negatively) ; currently I am using 5W30 as recommended in the car manual.
- Is their suggestion correct ? .Any disadvantages of using thick oil apart from bad fuel consumption?
- Which 20W50 oil should I use - which one is the best in the market . Toyota oil or any other ?
- What is the recommended oil change interval for this particular suggested oilSimilar Threads:
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