In Pakistan, most engines don’t die suddenly. They’re killed slowly. A common perception is that the main reasons the engine gets damaged are poor fuel, long drives, and heavy traffic. In fact, it is the wrong oil practice.
Most mechanics don’t know how to manage Mobil Oil in vehicles, and they end up ruining the vehicle’s engine. Using the same oil in all cars, adding a bit more than needed, and avoiding filter changes are among the significant reasons engines fail soon.
If you want to extend your engine’s lifespan, this article is for you.
Despite using the best Mobil Oil in Pakistan, below are the most common Mobil Oil mistakes Pakistani mechanics make, why they happen, and how they quietly shorten your engine’s life.
Mistake #1: Using the Wrong Viscosity Grade
(The biggest and most damaging mistake of all)
What do mechanics usually do?
They pick oil based on:
- Engine size
- What oil drum is already open
You’ll hear things like:
“10W-40 is way too strong to opt for.”
“20W-50 is a great choice for an old car.”
Mistake #2: Mixing Synthetic and Mineral Oil
(Yes, it still happens — a lot)
How does this usually occur?
- The workshop runs out of oil.
- Mechanic tops up with “whatever is available.”
- The customer brings a half-bottle from home.
- Old oil isn’t fully drained.
Why is this a problem?
Mineral, semi-synthetic, and full synthetic oils:
- Have different base stocks
- Use different additive packages.
- They are designed to work as a system.
Mixing them:
- Breaks down detergents
- Reduces lubrication stability
- Causes sludge formation
- Lowers heat resistance
Mistake #3: Overfilling the Engine Oil
This mistake is shockingly common. And the worst part is that car owners don’t even realize that it has happened to them.
What mechanics do?
They pour oil until:
- Dipstick goes above “Full.”
What actually happens inside the engine?
Excess oil causes:
- Crankshaft to whip oil into foam
- Aeration
What should you do?
- The oil level must be between Min and Max, not above Max.
- Check the dipstick after the engine settles.
- If overfilled, ask for oil to be drained immediately.y
Mistake #4: Underfilling the Oil
(Just as dangerous, sometimes worse)
Less common, but deadly.
How it happens
- The mechanic forgot the correct oil capacity.
- Assumes “4 litres is already in the car.”
- Oil left in the drum isn’t enough.
- Rush job
What causes underfilling?
- The oil pump draws air.
- Oil pressure drops under load.
Mistake #5: Ignoring Engine-Specific Requirements
(Especially in modern cars)
Many modern engines require:
- Low SAPS oils
- Specific API / ACEA ratings
- Turbo-safe formulations
Mechanics often ignore these altogether.
Result
- Timing chain wear
- Turbo damage
- Emission system failure
- Check engine lights
The Bigger Problem: Blind Trust
Most car owners:
- Don’t read manuals
- Don’t question mechanics.
- Assume experience = correctness.
But experience without updated knowledge creates outdated habits. This is why you need to have a good knowledge about your car and the right mobil oil practices.
How to Protect Your Engine (Without Becoming a Mechanic)
You don’t need to argue.
You need to be informed.
5 Things You Need To Do:
- Know your correct oil grade and capacity
- Stick to one oil type.
- Always change the oil filter.
- Check the oil level yourself.
- Change oil based on Pakistani conditions, not brochure promises
Final Words
Most engines in Pakistan don’t fail because they’re poorly designed. They give up because of small Mobil Oil mistakes repeated over the years, including wrong viscosity, mixed oils, extra oil, old filters, and delayed changes. Though each one alone seems harmless, together, they shorten engine life by years. Your engine doesn’t need expensive oil; it requires the right oil, used the right way.