diff --git a/src/modules/graphic/osggraph/Car/OsgCar.cpp b/src/modules/graphic/osggraph/Car/OsgCar.cpp
index 385a7363..f7ecdbbc 100644
--- a/src/modules/graphic/osggraph/Car/OsgCar.cpp
+++ b/src/modules/graphic/osggraph/Car/OsgCar.cpp
@@ -412,7 +412,7 @@ osg::ref_ptr<osg::Node> SDCar::loadCar(tCarElt *Car, bool tracktype, bool subcat
             }
 
             this->DRMSelector2->addChild(pWing1_branch.get());
-            strPath ="";
+            strPath.clear();
         }
 
         this->DRMSelector2->setSingleChildOn(0);
@@ -581,7 +581,7 @@ osg::ref_ptr<osg::Node> SDCar::loadCar(tCarElt *Car, bool tracktype, bool subcat
 
             this->DRMSelectMask[i-1] = 1 << selIndex;
             GfLogDebug(" # DRMSelectMask = %i - nDRM = %i\n", DRMSelectMask[i-1], nDRM);
-            driver_path ="";
+            driver_path.clear();
 
             selIndex++;
         }
diff --git a/src/modules/graphic/osggraph/Car/OsgWheel.cpp b/src/modules/graphic/osggraph/Car/OsgWheel.cpp
index 5914c4fc..699a5a5b 100644
--- a/src/modules/graphic/osggraph/Car/OsgWheel.cpp
+++ b/src/modules/graphic/osggraph/Car/OsgWheel.cpp
@@ -92,7 +92,7 @@ osg::ref_ptr<osg::MatrixTransform> SDWheels::initWheel(int wheelIndex, const cha
         GfLogInfo("Car Texture = %s\n", bSkinName.c_str());
 
         if (!exist)
-                bSkinName="";
+                bSkinName.clear();
         else
         {
             snprintf(buf, MaxPathSize, "wheel3d-%s", car->_skinName);
diff --git a/src/modules/graphic/osggraph/Loader/ReaderWriterACC.h b/src/modules/graphic/osggraph/Loader/ReaderWriterACC.h
index dbc51990..1a1e8418 100644
--- a/src/modules/graphic/osggraph/Loader/ReaderWriterACC.h
+++ b/src/modules/graphic/osggraph/Loader/ReaderWriterACC.h
@@ -232,7 +232,7 @@ public:
         // Use a shared modulate TexEnv
         mModulateTexEnv = modulateTexEnv;
 
-        if (name1!="")
+        if (!name1.empty())
         {
             std::string absFileName1 = osgDB::findDataFile(name1, options);
             i = TextureData::mTextureImageMap.find(absFileName1);
@@ -271,7 +271,7 @@ public:
             mTexture2DClamp1->setImage(mImage1.get());
         }
 
-        if (name2!="")
+        if (!name2.empty())
         {
             std::string absFileName2 = osgDB::findDataFile(name2, options);
             i = TextureData::mTextureImageMap.find(absFileName2);
@@ -310,7 +310,7 @@ public:
             mTexture2DClamp2->setImage(mImage2.get());
         }
 
-        if (name3!="")
+        if (!name3.empty())
         {
             std::string absFileName3 = osgDB::findDataFile(name3, options);
             i = TextureData::mTextureImageMap.find(absFileName3);