Routine maintenance November 2023 4S shop
ChesterMacadam 
13 It’s time for routine maintenance again.
The maintenance package I bought before during this maintenance was at a preferential price. During maintenance, the sales recommended an air conditioner fan impeller cleaning for 30 yuan, but it felt worth it.
The engine oil did not use the original engine oil, but used Castrol of the same specification. It felt that the sound was softer. Maybe the original engine oil viscosity was a little lower than the current Castrol.
The maintenance package I bought before during this maintenance was at a preferential price. During maintenance, the sales recommended an air conditioner fan impeller cleaning for 30 yuan, but it felt worth it.
The engine oil did not use the original engine oil, but used Castrol of the same specification. It felt that the sound was softer. Maybe the original engine oil viscosity was a little lower than the current Castrol.
Remove the spark plug and prepare to use an endoscope to observe the carbon deposit in the cylinder
Through the spark plug, we inferred the combustion situation, and it seemed that the combustion was not bad
Denso spark plug 20HR11???
The master of the 4S shop said that carbon deposition was serious
Is carbon deposition serious? I’m not gonna look
Guess the black spots are carbon deposits?
I wanted to take a photo of the tank, but it turned out…
Before putting in old engine oil, pad cardboard to guide the flow to avoid polluting other places.
Here comes the oil.
Old oil, a little dark.
In the slow drip…
The master said that the rubber sleeve was a little loose
This photo of the rubber sleeve is clearer
This is the oil I replaced this time, replacing the original “Toyota Pure Brand Engine Oil”
Add new oil
Cleaning the axial fan fan of the air conditioner
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