Recently changed the oil on my 04 Jag x-type 3.0 awd. I used Castrol 5W-30 Synthetic Oil. Can anyone tell me / recommend if I need to change again after 3K miles or with using the synthetic oil can I go longer before the next oil change?

Gary

 

I use Mobil 1 5w30 and go 7500mi, mostly highway, between changes.
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Jaguar: Grace, Pace, and Space - Sir William Lyons

 

What is the factory recommended oil change interval?

 

With Syntec, I would be Ok with 5K miles or 1 year.

 

I use Castrol Edge at every 6 month intervals in my 04 X-Type, 04 VDP, 2000 Durango, and 07 Jeep. Have had no issues thus far.

And have used it for: 85 Cougar, 93 Ranger, 94 Subaru, 95 Winstar, and a 2000 Elantra with no issues.

 

Consumer reports did a study a while back running regular off the shelf oil in New York Taxi cabs.

They found that even after 50,000 miles there was no significant break down of the lubricating properties of any oil because the standards in place are so high now.

That said I have always been a fan of synthetic oils since reading that track racers didn't have to rebuild their cars after every race and could go nearly a whole season on synthetics.

Oil is cheap compared to engines but I go 15,000 miles with no trouble or break down in the oil between changes.

The old rule of thumb of changing every 3,000 miles really dates from the '60's when oil standards were much lower and erratic. Now as CR points out even discount house brands are great.

cheers,
jj

 

Honda uses Pennzoil Platinum in their Indy car engines. To my knowledge, their have been no engine failures at all for the V6 engine.

 

I use the Castrol Syntec and change every 5000 miles.

 

All very true- the main point in the article is that the much-touted synthetics did NOT show any signs of reduced wear. There was also no indication that changing oil at 3K miles had any advantages over 6K or longer.

It's worth reading the entire text.

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If the X type has a 10K change interval like most Jags, then that's what I'd go for.

 

Thanks Mikey!

I should have looked it up myself....had a couple of things wrong and I suggest everyone should read the original article even though it has to be over ten years old by now.

FYI:

1. They suggest 7,500 mile intervals for oil changes of any brand that has a Star symbol on the can indicating that it meets the highest standards.

"On the basis of our test results, we think that the commonly recommended 3,000-mile oil-change interval is conservative. For "normal" service, 7,500-mile intervals (or the recommendation in your owner's manual) should be fine. Change the oil at least that often to protect your engine and maintain your warranty."

"The starburst symbol is a circle with a serrated edge about an inch across with text which reads "AMERICAN PETROLEUM INSTITUTE CERTIFIED FOR GASOLINE ENGINES."

2. They said shop by price if it has the star buy the cheapest you can find.

"None of the tested oils proved better than the others in our tests. There may be small differences that our tests didn't reveal, but unless you typically drive under more severe conditions than a New York cab does, you won't go wrong if you shop strictly by price or availability. Buy the viscosity grade recommended in your owner's manual, and look for the starburst emblem. Even the expensive synthetics (typically, $3 or $4 a quart) worked no better than conventional motor oils in our taxi tests, but they're worth considering for extreme driving conditions high ambient temperatures and high engine load or very cold temperatures. "

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cheers,

jj

 

Been using Castrol Syntec ( now Edge) for going on 5 years now. Change oil and a K & N filter every spring. No problems yet.

 

Cant remember what the interval is between changes on the X from when I had mine, but 10k rings a bell somewhere!

I use Castrol Edge 05w30 Syntec in my Audi A6....its whats recommended by the OEM.

When I was travelling 50k+ miles per year and lots of motorway driving i was happy enough to go down the longlife route as recommended and changed at every 18k miles, with no issues.

At around 60k miles my driving habits changed to infrequent driving and stop / start around town, so I changed my oil change intervals accordingly.
I went back to fixed servicing regime and now change every 10k miles or year whichever comes first.
I'm now at 90k miles approx with no issues and fully expect to be able to drive the car for years and miles to come with no issues in that dept.

To be totally honest I feel as if I'm babying this car now even at that and that its not 100% necessary, but for a £100 makes me feel better.

I've seen lots of members change their oil, even using synthetics at 5k miles or even 3k miles.
IMO with todays technology and advances made in oil manufacture etc its unnecessary, but each to their own I say.

I try never to slate anyone else for doing something different from me and its only my opinion, which we all have and are free to exercise.

 

It kind of depends whether your getting any ring or valve blow-by, that will contaminate the oil.

Always use a good oil filter (I use a Mobil 1 filter).
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Jaguar: Grace, Pace, and Space - Sir William Lyons