Cultus 2008 efi while driving feels heavy

[pwuser166514958635]

My suzuki cultus 2008 efi feels heavy during driving. I changed the battery but still it feels heavy. I have to accelerate a bit.Plus It gives jerks while deceleration . I have changed plugs and its wires last year. There is a little leakage below the master cylinder which fluctuates the brake pressure. It used to run very smooth now heavy and requires greater accelerator to run. Any suggestions?

[hash4u]

check tire pressure
bearings
oil, use 10w 40 max...drain out 20w 50 is using it

[affanhaq94]

How has the vehicle been maintained?

Is there a brake caliper seized or one of the brakes dragging/stuck on?

How's engine health? Catalytic converter health?

What oil weight are you using?

[pwuser166514958635]

I have been using 20w 50. Can you elaborate a bit about its side effects. I have just changed it recently.

[pwuser166514958635]

Timely maintenance.
Oil wt = 20w 50
Engine health is good not sure about catalytic converter.
Two of brake calipers rear have been changed recently. There is a leakage in brake oil below the master cylinder. After few days, it drains it all.

[affanhaq94]

20w50 is a very high viscosity oil. In Canada, people very rarely use that oil. Only if the car burns a lot or is on its last legs.

A 40 weight oil would probably be better suited, as some quick research sees that is the recommended weight for an 08 cultus.

Also, fix the master cylinder. It would be very unfortunate to not have brakes one day.

[fusion.alive11]

Hamray Pak mai super shahkars hain wah wah... brother yeh master cylinder ki leakage fix karwanay mai itni susti kis baat ki? Bhai khudkushi ka irada haito dosron ki jaan tou mat khatray mai dalo..

By the way check your distributor and its timing and also get your brakes checked they might be stuck.

[engnr.mubashir]

Get the MAP sensor check if it doesn’t works properly it causes engine load increased.