Motor Crude Myths - Conventional Vs. Synthetic.

Choosing the best, whether synthetic or conventional, engine petroleum is highly controversial too debated. Motor petroleum is surrounded alongside myths too questions. Shell helps answer the following:
- What does 5W-30 mean?
- Why should I alter my oil?
- What is the typical composition of motor oil?
- Are aftermarket petroleum additives needed?
- What does synthetic petroleum mean?
- Can y'all mix synthetic alongside conventional oil?
- Can synthetic locomote used to suspension inwards an engine?
- What causes sludge?
- Why should I purpose the viscosity degree that the manufacturer recommends?

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