Haha "moojuice"... Forget what the manual says, I dont think anyone would leave a dino oil in for 10k miles. On the conservative side, I would say 3000k for a dino oil, again, conservatively. Conversly, I would not have a problem leaving a full synthetic in for 10k. This would also depend on how it was driven, mostly highway/city/agressively etc.

Anyways, so yes, my opinion is that you can in fact get away with getting 3x more out of full synthetic vs. dino. The STR has almost a full qt more than than the 6cyl at just about 7qts.

AMSOIL full synthetic 5w30 @ $8.75/qt x 7 = $61.25
Valvoline premium conventional dino 5w30 @ $4.29/qt x 7 = $30.03

So I'm saving approx $30 every 10k and no sludge.

Not going to get into the technical details about why synthetic is better than conventioanl for high performance vehicles, but I feel better about it being in my vehicle especially seeing as I have 50k on her now.

 

The manual says "Note that Jaguar does not approve the use of synthetic engine oil in the V6 engine."

Is there any reason behind it?

 

I use the synthetic and it seems fine. The filter and plug are on the passenger side, have to search a bit. Get the Rhino Ramps as someone suggested. Once up you have to get under the car and you will find everything. My dealer suggested or I was told also when changing the oil the nut you remove to drain the oil should be replaced. Not sure if this is true or not but I do it.

 

Where do you personally buy both the nut and filter from?

 

You don't have to replace the drain plug, guys. You do occasionally have to replace the rubber gasket on the drain plug. The local dealership parts guy gave me 3 or 4 of them last summer (I couldn't believe it - they never give away ANYTHING). The Jaguar parts departments sell them for four or five bucks each, but if you take one to a hardware store or plumbing supplier, you"ll find similar or identical gaskets for less than fifty cents each....

Bull, the V6 engine takes nearly 7 quarts to fill. At least mine does. Some folks do indeed go 10,000 miles or more between oil changes with conventional oil. The European carmakers recommend these 10,000-mile intervals as a marketing tool to cut down on normal maintenance expenses. But anyone who's ever seen how dirty and worn-out that conventional oil is after 10,000 miles would never do that if they cared about the car. With a leased car, many folks just do the minimum. So you can expect some of these cars to have done 10,000 miles or more between conventional oil changes....

 

Oh I'm sure the leased vehicles normally did the standard 10k interval, I just cant believe it is "recommended" by Jag. Like you said, its probably a way for them to cut down on service costs during the warranty period. Just couldnt imagine going 10k on a conventional oil, dont care what car or what brand I'm using.

where can I get a bunch of cheap filters? I'm going to use my buddy's driveway and attempt to change the oil on this thing myself for the first time.

 

Cheap filters - from the dealer. Hardly worth hunting for a better price.

 

I've used Purolator filters for more than 30 years. They've never failed me yet. You'll find them at Advance Auto Parts, Pep Boys, Autozone, etc. Around here, they go for about four bucks each. Sometimes they're on sale for half that. If you find a sale, stock up....

 

So it's okay to use 0w-30 on these cars? I've got a box of Eneos (fancy Jap full syn racing oil) leftover from my track days when I had an Subaru STi? I'm out west....

 

You'd do well to check your handbook (see forum sticky if you don't have one). And the Vehicle Specifications will be handy many times:
https://www.jaguarforums.com/forum/a...4&d=1269505095

Congrats on the car, and especially the price!!

 

Thanks, jagv8! I just wanted clarification/commenting on a previous post where it was indicated the poster used 0w-30 oil. But definitely easier to just follow Jaguars recommendations and I am lucky enough to have the handbook!

 

Parts manager at Dealer had given me a drain plug at one point for free also. Will now just change the gasket washer. Charged about 6 bucks for a new nut in the past. Purolator filters also at Auto Zone. I'm sure everyone knows but also put a little oil on the filter rubber ring before putting it in place.

 

With regards to 0W30,
0W30, 5W30, 0W40, and 5W40 are all oils that can be used in the jag per the jaguar's driver's handbook.

 

I use both Royal Purple & Mobil 1 synthetics in my cars (03 Jag X-type, 05 BMW 325i, 02 Mazda Protege5). 05-30w

 

Amsoil 0W30 every 7500-9000 miles.

 

..Hey could you tell me where to get the cheapest price on the amsoil 0w30 from? I too am from Florida, and just bought a used S type R 03'. I was planning on using the K&N oil filter and Air filter when I do the oil change.

 

If you mean the kind of air filter which needs a light oiling and/or has a more open weave than the stock filter, forget it. You are risking serious damage to an expensive car for at most a tiny $$$ saving and no performance gain without expensive mods. Plenty of threads about this you can read.

 

So basically you are saying stay away from using a K&N air filter on the STR? I know I had one on my Boxster and it came like that when I bought, my MAF sensor kept coming on after reseting it. But I do see your point of not using it on the STR. What about using the K&N oil filter though?

 

Cost of MAF - lots. Damage potentially done - huge.

jag filters are hardly expensive, why not just use them

 

Just food for thought. You can never change your oil too often. Im seriously **** about this kind of stuff. I never go over 3000 miles between oil changes even though I use a full synthetic.

Running about 6k miles between an oil change your engine will usually burn about 1/2 to 1 quart of oil (depending on age, mileage etc.) which in a vehicle that takes 7+ quarts isnt the end of the world. My xj6 takes like 8.8 quarts or something. But in a car like my Civic Si which only takes around 4 it makes a huge difference. Burning a quart of the oil in a car that only takes 4 quarts is burning a quarter of its entire capacity. I obviously check the level regularly but its just a little pet peeve of mine. Its the only thing that lubricates the engine parts and provides quite a bit of cooling as well.

It never hurts to be more frequent with the oil changes. I change mine in the xj6 around every 2000 miles because its a weekend driver. Shorter trips are harder on the oil.
Either way its just good habit to do them more frequently. Im not saying do it every 2000 miles like me on your daily driver. But perhaps around every 4500 to 5000 miles.