diff --git a/superset/db_engine_specs/base.py b/superset/db_engine_specs/base.py
index f52b6250548..6c0cd77478c 100644
--- a/superset/db_engine_specs/base.py
+++ b/superset/db_engine_specs/base.py
@@ -551,17 +551,17 @@ class BaseEngineSpec:  # pylint: disable=too-many-public-methods
     ) -> str:
         """
         Return URI for initial OAuth2 request.
+
+        Uses standard OAuth 2.0 parameters only. Subclasses can override
+        to add provider-specific parameters (e.g., Google's prompt=consent).
         """
         uri = config["authorization_request_uri"]
         params = {
             "scope": config["scope"],
-            "access_type": "offline",
-            "include_granted_scopes": "false",
             "response_type": "code",
             "state": encode_oauth2_state(state),
             "redirect_uri": config["redirect_uri"],
             "client_id": config["id"],
-            "prompt": "consent",
         }
         return urljoin(uri, "?" + urlencode(params))
 
diff --git a/superset/db_engine_specs/gsheets.py b/superset/db_engine_specs/gsheets.py
index 2c70d07e947..30da234fd2c 100644
--- a/superset/db_engine_specs/gsheets.py
+++ b/superset/db_engine_specs/gsheets.py
@@ -45,6 +45,7 @@ from superset.utils import json
 if TYPE_CHECKING:
     from superset.models.core import Database
     from superset.sql.parse import Table
+    from superset.superset_typing import OAuth2ClientConfig, OAuth2State
 
 _logger = logging.getLogger()
 
@@ -129,6 +130,38 @@ class GSheetsEngineSpec(ShillelaghEngineSpec):
     oauth2_token_request_uri = "https://oauth2.googleapis.com/token"  # noqa: S105
     oauth2_exception = UnauthenticatedError
 
+    @classmethod
+    def get_oauth2_authorization_uri(
+        cls,
+        config: "OAuth2ClientConfig",
+        state: "OAuth2State",
+    ) -> str:
+        """
+        Return URI for initial OAuth2 request with Google-specific parameters.
+
+        Google OAuth requires additional parameters for proper token refresh:
+        - access_type=offline: Request a refresh token
+        - include_granted_scopes=false: Don't include previously granted scopes
+        - prompt=consent: Force consent screen to ensure refresh token is returned
+        """
+        from urllib.parse import urlencode, urljoin
+
+        from superset.utils.oauth2 import encode_oauth2_state
+
+        uri = config["authorization_request_uri"]
+        params = {
+            "scope": config["scope"],
+            "response_type": "code",
+            "state": encode_oauth2_state(state),
+            "redirect_uri": config["redirect_uri"],
+            "client_id": config["id"],
+            # Google-specific parameters
+            "access_type": "offline",
+            "include_granted_scopes": "false",
+            "prompt": "consent",
+        }
+        return urljoin(uri, "?" + urlencode(params))
+
     @classmethod
     def impersonate_user(
         cls,
diff --git a/tests/unit_tests/db_engine_specs/test_base.py b/tests/unit_tests/db_engine_specs/test_base.py
index 6db0edb813d..bff4c931171 100644
--- a/tests/unit_tests/db_engine_specs/test_base.py
+++ b/tests/unit_tests/db_engine_specs/test_base.py
@@ -894,3 +894,52 @@ def test_extract_errors_no_match_falls_back(mocker: MockerFixture) -> None:
         engine_name="ExampleEngine",
     )
     assert result == [expected]
+
+
+def test_get_oauth2_authorization_uri_standard_params(mocker: MockerFixture) -> None:
+    """
+    Test that BaseEngineSpec.get_oauth2_authorization_uri uses standard OAuth 2.0
+    parameters only and does not include provider-specific params like prompt=consent.
+    """
+    from urllib.parse import parse_qs, urlparse
+
+    from superset.db_engine_specs.base import BaseEngineSpec
+    from superset.superset_typing import OAuth2ClientConfig, OAuth2State
+    from superset.utils.oauth2 import decode_oauth2_state
+
+    config: OAuth2ClientConfig = {
+        "id": "client-id",
+        "secret": "client-secret",
+        "scope": "read write",
+        "redirect_uri": "http://localhost:8088/api/v1/database/oauth2/",
+        "authorization_request_uri": "https://oauth.example.com/authorize",
+        "token_request_uri": "https://oauth.example.com/token",
+        "request_content_type": "json",
+    }
+
+    state: OAuth2State = {
+        "database_id": 1,
+        "user_id": 1,
+        "default_redirect_uri": "http://localhost:8088/api/v1/oauth2/",
+        "tab_id": "1234",
+    }
+
+    url = BaseEngineSpec.get_oauth2_authorization_uri(config, state)
+    parsed = urlparse(url)
+    assert parsed.netloc == "oauth.example.com"
+    assert parsed.path == "/authorize"
+
+    query = parse_qs(parsed.query)
+
+    # Verify standard OAuth 2.0 parameters are included
+    assert query["scope"][0] == "read write"
+    assert query["response_type"][0] == "code"
+    assert query["client_id"][0] == "client-id"
+    assert query["redirect_uri"][0] == "http://localhost:8088/api/v1/database/oauth2/"
+    encoded_state = query["state"][0].replace("%2E", ".")
+    assert decode_oauth2_state(encoded_state) == state
+
+    # Verify Google-specific parameters are NOT included (standard OAuth 2.0)
+    assert "prompt" not in query
+    assert "access_type" not in query
+    assert "include_granted_scopes" not in query
diff --git a/tests/unit_tests/db_engine_specs/test_gsheets.py b/tests/unit_tests/db_engine_specs/test_gsheets.py
index 148064d8a6f..2ed796c32d2 100644
--- a/tests/unit_tests/db_engine_specs/test_gsheets.py
+++ b/tests/unit_tests/db_engine_specs/test_gsheets.py
@@ -638,6 +638,11 @@ def test_get_oauth2_authorization_uri(
     encoded_state = query["state"][0].replace("%2E", ".")
     assert decode_oauth2_state(encoded_state) == state
 
+    # Verify Google-specific OAuth parameters are included
+    assert query["access_type"][0] == "offline"
+    assert query["include_granted_scopes"][0] == "false"
+    assert query["prompt"][0] == "consent"
+
 
 def test_get_oauth2_token(
     mocker: MockerFixture,
diff --git a/tests/unit_tests/sql_lab_test.py b/tests/unit_tests/sql_lab_test.py
index 2f165df009f..6e221e1494b 100644
--- a/tests/unit_tests/sql_lab_test.py
+++ b/tests/unit_tests/sql_lab_test.py
@@ -231,7 +231,7 @@ def test_get_sql_results_oauth2(mocker: MockerFixture, app) -> None:
                 "error_type": SupersetErrorType.OAUTH2_REDIRECT,
                 "level": ErrorLevel.WARNING,
                 "extra": {
-                    "url": "https://abcd1234.snowflakecomputing.com/oauth/authorize?scope=refresh_token+session%3Arole%3AUSERADMIN&access_type=offline&include_granted_scopes=false&response_type=code&state=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9%252EeyJleHAiOjE2MTcyMzU1MDAsImRhdGFiYXNlX2lkIjoxLCJ1c2VyX2lkIjo0MiwiZGVmYXVsdF9yZWRpcmVjdF91cmkiOiJodHRwOi8vbG9jYWxob3N0L2FwaS92MS9kYXRhYmFzZS9vYXV0aDIvIiwidGFiX2lkIjoiZmIxMWY1MjgtNmViYS00YThhLTgzN2UtNmIwZDM5ZWU5MTg3In0%252E7nLkei6-V8sVk_Pgm8cFhk0tnKRKayRE1Vc7RxuM9mw&redirect_uri=http%3A%2F%2Flocalhost%2Fapi%2Fv1%2Fdatabase%2Foauth2%2F&client_id=my_client_id&prompt=consent",
+                    "url": "https://abcd1234.snowflakecomputing.com/oauth/authorize?scope=refresh_token+session%3Arole%3AUSERADMIN&response_type=code&state=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9%252EeyJleHAiOjE2MTcyMzU1MDAsImRhdGFiYXNlX2lkIjoxLCJ1c2VyX2lkIjo0MiwiZGVmYXVsdF9yZWRpcmVjdF91cmkiOiJodHRwOi8vbG9jYWxob3N0L2FwaS92MS9kYXRhYmFzZS9vYXV0aDIvIiwidGFiX2lkIjoiZmIxMWY1MjgtNmViYS00YThhLTgzN2UtNmIwZDM5ZWU5MTg3In0%252E7nLkei6-V8sVk_Pgm8cFhk0tnKRKayRE1Vc7RxuM9mw&redirect_uri=http%3A%2F%2Flocalhost%2Fapi%2Fv1%2Fdatabase%2Foauth2%2F&client_id=my_client_id",
                     "tab_id": "fb11f528-6eba-4a8a-837e-6b0d39ee9187",
                     "redirect_uri": "http://localhost/api/v1/database/oauth2/",
                 },