So I wrote Jaguar North America with a brief two-part question:
First, is 0W-20 an acceptable weight for my 5.0 engine, and second, is Castrol Edge Extended Life the correct brand (my concern was based on posts in this forum that dealerships use a type of Castrol not available to the consumer)?
Here's their response, for what it's worth:

 

Is Castrol not a British Petroleum product? Why would they not want you to support the British economy?

 

No the gist of the posts I've come across here (as far as I can remember) is that when you get your oil changed at a dealership they use a "not available in stores" type of Castrol ("Professional," or some such), and that the Castrol Extended Life we buy in stores is not the same. Also, my 2010 owner's manual says 5W-20 but I noticed oil changes at a dealer are done using 0W-20.

 

Gotcha. We use Mobile at work but since it's industrial it runs under different specs vs. the auto stuff. ISO vs SAE grinds.

 

Looks like you have 2 options here. You can go with the OM or with the letter from Jaguar. Either way is not a problem.

 

4.2L and 5.0L engines use different spec oils, although I'm pretty sure it's OK to use the 5.0L oil in the 4.2L, but not vice-versa.

I'm confused, and maybe an engineer on the forum can help. An electric powerplant is called a motor. An internal combustion powerplant is called an engine. Why is it called motor oil when it's used to lubricate an engine? I know it's just semantics, but ???

American English is puzzling. We drive our cars on the parkway and park them in the driveway. Go figure.

 

MOTOR
Verb - to move one's self (or a device), usually under its own power.
Noun - a device which changes electricity into rotational force.

Hence, Motor Sports is a conglomeration of activities in which devices move themselves. As in "to motor".

 

 

I do love the brilliant idea of spelling lisp with an isp.
This was we can catch them. "I dont have a lipth" yes you do.

 

Why is it an outboard motor and not engine?

 

This was said many times, but worthwhile to repeat. Direct Injection engines are very prone to forming sludge. As such, Engine Oil, and changing it frequently is Very Important. More so than at any point in the past 40 years.

 

Now I can't get that out of my head.

 

Try this:

 

Let's do it right...

 

Because stupid people started using the wrong word, and more stupid people used it wrong because of them, then MORE stupid people used it wrong because of them, ad infinitum.
Once stupid people use words wrong, it becomes part of the ever-evolving social norm pattern of language, and can never be undone.
That's also the reason (ugh) 'motor' is commonly accepted when referencing an "Engine". - - stupid people don't know better, so they accept it as correct. When explained to them WHY they are wrong, the response is usually "Well, (insert name, usually of a racer) says motor, so that makes it correct". ....and so on, and so on...

"You Can't fix Stupid"
- Ron White

 

 

ELO is no problem as they are some of the songs of my youth and as far a s ZZtop that greatest hits CD is in the Jag. Great driving music. No rap crap here.

 

Just had my annual oil change at Jag dealership. I have under 1,000 miles since my last oil change but am diligent to do yearly oil changes regardless of miles driven. Cost me approximately $100 and change out the door with an old $50 coupon. Castro synthetic listed on work order.

 

I am a mechanical engineer. I was involved in a similar discussion on what is the difference between a motor and engine after work, once upon a time. There seemed to be a consensus that an engine burns fossil fuel and a motor uses electricity.

After reading definitions from various sources our consensus was wrong. Motor and engine are pretty much synonymous and interchangeable.

Look them up and read the definitions.

 

Why do we call Detroit 'motor city' then?