| Subject: | Oil Leak or Oil Spots on Driveway and/or Garage Floor After Routine Maintenance Engine Oil Change |
| Models: | 2006-2009 HUMMER H3 |
| with Vortec 3.5L, 3.7L or 5.3L Engine (VINs 6, E, L -- RPOs L52, LLR, LH8) |
| Attention: | Special Labor Operation J7527 -- Install Moisture Sealant Patch to Frame Brace Access Hole is no longer valid for warranty claim submission. Vehicles that exhibit the condition above DO NOT commonly have an actual oil leak. |
This bulletin is being revised to provide more accurate oil change information. Please discard Corporate Bulletin Number 08-06-01-010A (Section 06 -- Engine/Propulsion System).
Proper Oil Changing and Oil Spillage Concerns
Based on input from the field, several alternate methods are available to direct oil flow and ease oil spillage concerns on the above vehicles. Oil spillage on frame/suspension components that may capture some oil is an industry wide concern affecting
many vehicles. Using a combination of techniques, most vehicles can have the engine oil changed with satisfactory results.
Engine Oil Change Techniques
Some common ways to direct oil flow during an engine oil change include:
| • | A 90 degree piece of PVC pipe held immediately against the drain plug outlet during drain plug removal will direct oil flow in an intended direction. |
| • | A funnel may be used to help direct the engine oil straight down into the drain pan. |
| • | A flat foil baking pan can be bent or fabricated to direct oil flow from oil plug holes, and filter adapters where vertical space is limited. |
| • | Using additional absorbent pads, paper or shop towels to absorb stray oil is recommended. |
Oil spill to some extent on the underbody components can not always be avoided. In these cases simple clean-up techniques should be employed (i.e. wipe down, power wash or use a 50-state Volatile Organic Chemical (VOC) compliant engine
degreaser or equivalent). Customers should be instructed that no matter how many attempts are made to clean the underbody, the potential for a couple drips of engine oil followed by an engine oil change may be expected.
