This document discusses oil leakage in medium and heavy commercial vehicles. It identifies that oil plays a vital role in vehicles as a lubricant, but leakage can lead to malfunctions. The document outlines the major points where leakage occurs, such as hydraulic pipes and pumps. It also lists the types of oils used and reasons for leakage, such as worn parts or loose fasteners. Charts show the percentage of leakage by vehicle model and oil type. Corrective measures include tightening parts, replacing gaskets, and maintaining proper oil levels.

1. Oil & Its leakage in Medium & Heavy
Commercial Vehicle
Presented By:
Name: Anjani Kumar
Regd.No:1001216141
Semester: 7th
Branch: Mechanical Engg.

2. Introduction
Oils are the major component of
vehicle
Perform vital role as lubrication,
energy production, heat reduction etc.
Brown/Black patch under the vehicle
is the obvious sign of the Oil Leak in
vehicle
Leakage in the vehicle will lead to
malfunctioning and poor on road
performance

3. Medium & Heavy commercial Vehicle
 LP type:
 T: Truck
 S: Trailer
 K: Tripper
 Model: LPK
2518BS3
 SFC type:
 T: Truck
 S: Trailer
 K: Tripper
 SFC Truck
2518BS3

4. Need For Oil
 It lubricates moving gears and shaft
arrangement
 Oils carries away heat generated inside
the engine and gear box
 Avoid direct contact of different moving
surfaces
 Acts as washing agent for dirt & used
grease
 provide smooth surface
 Maintaining wear and tear free
mechanism for long term use

5. Types of Oils
 Engine oil: 15W40
 Differential & Axel Oil: 85W140.
 Transmission & Clutch Oil: 85W90
 Coolant oil: ETHYLENE GLYCOL
 Fuel oil:
Diesel, Bio Fuels

6. Major points of leakages in
M & HCVs
 From Hydraulic pipe
joint at steering box
 From tilt pump bottom
joint

7. From Hydraulic pipe(6’’)
“T” joint:
From Hydraulic pump
elbow union joint

8. Leakage from cab lifting
cylinders
Oil leakage from cab
lock union pipe joint

9. Oil leakage from fuel
tank welded joint
Oil leakage from P.T.O.
Pump

10. Oil leakage from
gear box drain plug
Oil leakage from
steering box

11. Leakage of coolant Leakage from clutch
housing

12. Reasons For Leakage
Worn pistons and rings
Damaged gaskets
Oil Drain plug not secured properly
Oil plug damaged
Oil filter not attached correctly
High oil pressure
Oil coolant line corroded
Loosely fitted Fasteners
Improper Welded parts

13. 17.64%
11.76%
11.76%
17.64%
11.76%
11.76%
11.76%
5.88%
Model wise Oil Leakage Chart
LPT2518
LPT3118
LPT1613
LPS4018
LPT1618
LPT1615
LPT1612
LPT2516

14. 0.00%
5.00%
10.00%
15.00%
20.00%
25.00%
30.00%
35.00%
40.00%
Hydraulic Oil Fuel Oil Clutch Oil Engine Oil Coolant
Bar chart for Oil Leakage
Bar chart for Oil Leakage

15. Corrective Measures
 Fasteners should be properly
tightened
 anti leak/sealant material over joints
 Replacing damaged gasket
 Applying Teflon tape
 Tightening of oil drain plugs and oil
filters
 Replacing the leaking parts like fuel
tank etc.
 Maintaining right oil level in the tank or
oil sump.