Are these generally regarded as safe in a 2008? I wanted to check with the experts before I added anything. I seem to have a small leak when parked on an incline. Thank you!

 

IMHO: If you are thinking of adding something to the oil to stop the leak... don't.

 

Try a high mileage full synthetic first. Worked for my Celica.

 

Also only reason I see the leak on an incline is because the body panels under the car normally hold the leaked oil and now you're at the tipping point.

High mileage might take 1-2 full oil cycles to work, too. So be patient.

Stop leak can gum up the timing on the engine and other areas.