Caterpillar C15 / C15 Generator Set — Engine Oil and Filter - Change
Maintenance · Lubrication system
For the Caterpillar C15 / C15 Generator Set, from the Caterpillar owner's manual.
Applies to: Caterpillar C15, Caterpillar C1.5 engine
Before you start
- Hot oil and hot components can cause personal injury.
- Do not fill the oil filters with oil before installing them.
- Do not drain the oil when the engine is cold.
Parts for this job
Part numbers from the service-parts list for Caterpillar C15. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Drain the engine oil from the crankcase while the oil is warm.
- Remove the oil filter with a 1U-8760 Chain Wrench.
- Cut the oil filter open with a 175-7546 Oil Filter Cutter Gp and inspect for metal debris.
- Clean the sealing surface of the filter mounting base. Remove all of the old gasket.
- Apply clean engine oil to the new oil filter gasket.
- Install the oil filter. Tighten until the gasket contacts the base. Tighten by hand. Do not overtighten.
- Fill the crankcase with the proper amount of oil.
- Start the engine and run at LOW IDLE for two minutes. Inspect the oil filter for leaks.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Do not crank the engine for more than 30 seconds.
- Allow the oil to drain back to the sump for a minimum of ten minutes before checking the level.
Full service-parts list: Caterpillar C15 →
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.