Oil change people just did oil change with 5w-20 partial synthetic. I am in Florida. Should i have them change it to 5w-30 which is what i told them to use in the first place or am i ok? Just happened yesterday

 

I'd make 'em change it. For sure, they're not going to pay for any damage that thin oil does.

 

If you told them what you wanted and they did not do what you expected, tell them to correct it… As for the oil I personally see no reason to be alarmed at this time.

 

I dunno... 5W-20 in Florida in the summer??? I'd definitely tell them to put the correct oil in the car. It might not make a difference, but why take the chance?

 

I called and the guy said that the computer just defaults to 5w-20 for the partial synthetic oil change and that he told the tech (which who knows) and that they go by what is on the oil cap on the engine anyway. There is no specified weight of oil on the cap on the XK8. I am calling the manager tomorrow.

Sam I thought the same thing with the Florida summer and thinner oil.

 

Look in the owners manual for the list of recommended oil grades vs. operating conditions. If this oil is not specifically recommended, then force the shop to change it.

 

This link might help in identifying if you have a problem http://www.bobistheoilguy.com/cms/ I hope it helps!

 

Ok guess no issue after reading that article

 

They thought it was a Ford.The is a service bulletion the the Lincoln 3.9L V8,which is based on the Jaguar 4.0 engine here is a link where the service bulletin says to use 5w20

http://answers.edmunds.com/question-...it-105775.aspx

I will keep out of the rest of the debate.

 

I know it's too late now, but I always change my own oil, I never trust these places to do it right. While underneath, I then spray rubber preservative on all boots and bushings and armor all on everything else. I look for leaks and damage while there as well. I also wipe everything down so that leaks show up better. I have never had to replace any rubber parts under any of my cars and it always loos like new under them. I just like that....sigh. I am an ex-pro tech and at my shop, the guys changing oil also kept the floors and toilets clean and that was their main job.