hey guys got an 07 s type 3.0 V6 thats due for its oil change since we got the car was wondering what oil types and brands are recommended or what you guys use in your cars?

 

Take a look at your engine oil cap. They tend to say "Jaguar recommends Castrol 5W-30 motor oil". So that's what I use. Conventional Castrol 5W-30, changed along with the oil filter (I use the Purolator L20195) and a tire rotation every 6,000 miles. Seems to work for our S-Type....

 

It's in the handbook. You can download it via the forum stickies.

 

I am with Jon.

 

amsoil european or signature series formula period....

 

This is like asking 'what's the best beer' and expecting a unanimous answer from all participants. For reasons I'll never understand, there's always a very loud faction that likes to promote high end over-priced 'boutique' oils. There's no hard evidence that they actually work better in any tangible fashion, but I guess people feel better about spending the extra money. Sort of like thinking that Evian bottled water is better than local stuff. Others like to use the logic that since (insert name of foreign made exotic or hyper car) uses it, or that since racing cars use it, it must be better.

Follow the factory specs, you won't go wrong.

 

5W-30 conventional. If you change your oil every 3-5000 miles using synthetic is a huge waist of money.
Synthetic was designed for long life and is no better than conventional in the 3-5000 mile range,it MIGHT hold its viscosity ratings longer and that is why it is popular with the I change my oil every 20-30,000 mile crowd. If you use synth and change often you must love spending your money needlessly.

 

So, in your opinion, is synthetic a smart thing to do if the oil is changed at 8,000 to 10,000 intervals?

 

On my third Jag - used Castrol GTX 5W-30 in all of them with no problems. Use Purolator or Motorcraft filters.

Regards:
Oldengineer

 

Jaguar service schedule only calls for an oil change every 10,000 miles with conventional oil.
Its your call on the synthetic and the extra cash.

 

What would you gain?

 

I would run synthetic oil only if I planned to follow the recommended 10,000-mile interval in the owners manual. But I think 10,000 miles is too long a span in these engines, particularly given what I've learned about the 3.0 V6 misfire issues and their list of potential causes including blow-by oil vapor as expertly pointed out by Brutal in 2009....

I also know that synthetic oil can find leaks that conventional oil cannot, particularly in high-mileage vehicles. Some folks are under the misconception that synthetic oil causes leaks. It does not. But it is capable of leaking through seals and gaskets that conventional oil cannot leak through. Owners are sometimes very surprised when they switch to synthetic oil and all of the sudden they see oil leaks on their garage floors that were never there when they ran conventional oil....

I'm sticking to conventional Castrol 5W-30 and my 6,000-mile change interval. It works for our S-Type and it saves me considerable money compared to synthetic oil because I wait for the sales at Advance Auto / Autozone / Pep Boys and then pick it up for about $2 per quart....

 

Well said my local dealer uses Castrol 5w-30 and recommends changing oil around 5,000 miles. I've been told that it's the oil of choice for Jaguar.

 

My dealer also uses 5W-30 but is adament with the 10,000 mile oil change.
I don't know if they are towing the party line or just trying to save me money, they insist that 10,000 will not cause any harm.
I opt for 5-6000 and get it done against their wishes, they don't mind taking my money in that case..lol. 10,000 just doesn't seem right to me.

 

Castrol is Jaguars worldwide partner for lubricants. The press release is below. I use Castrol Syntec 5W-30 and change at 7500 mi intervals. My 2005 STR uses about 1 quart every 5-6K miles. I use Mobil one in everything else but have so far respected Jaguar recommendation to use the Castrol brand.
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I've run Valvoline conventional oil in every vehicle I've owned since the mid-1970s and have never had an engine problem in any of them. But I decided to stay with the recommended Castrol in our S-Type. Partly because it's embossed right there on the oil filler cap, and partly because of my previous superstitions about Jaguar being a brand prone to reliability issues. I've thought about switching over to Valvoline in the S-Type and therefore not having to stock two different oil brands in my garage, but thus far I haven't done it....

 

Bucking convention again,

The jaguar manual rec 5W30, 0W30, 0W40, 5W40 API SJ/EC grade oil.

I use to run the synth blend castrol oil in 3kmile intervals but Mobil 1 in 0W30 and 5W30 is about $22 for a 5 qt jug at Walmart vs $18 for the Castrol mixed and about $14 for the std oil. At operating temp, both are 30 wt oil but at lower temp, 0W will flow a bit better so I have been using 0W30 every 6k for the last 4 oil changes. I have one car that needs the 0W40 that I have to buy by the qt for $6.99 so the Walmart pricing is a pretty good deal for a pure syn. oil at about $4.40 per qt. That also have pretty frequent $10 rebates through the mobile website.

A bigger question for me is the oil filter. The Bosch is the cheapest, about $5. There are others that range from $10 to $40. I recently ordered a $5 bosch and a more expensive $20 filter. It seems like the more expensive filter has thicker metal and the filter material looks to be more substantial, comparable to the OEM filter which is designed to go 10kmiles. Considering public perception is centered around 3kmiles/change and Fram has different grades of filter that is supposed to last longer for cars with longer change intervals, anyone wonder if the Bosch is designed to go 3K and is it adquate at 6K or 10Kmiles? Does the more expensive filters with increased and better filter material better for the car if you want to go 5 to 6K or all the way to 10K? At the end of the day, all of the oils meet some sort of standard but there isn't a standard for the filter and the construction, bypass valve pressure, and filter material & quanity varies quite a bit.

With that in mind, I use to use synthblend oil with the bosch filter every 3K miles but the cost of the mobile 1 and better filter at 6K miles is about the same or a bit cheaper without the uncertainty of the design lifetime of the cheaper constructed bosch filter plus I can change the oil less often.

 

I use G-Oil, it is a beef tallow based oil product that is environmentally friendly and ultimate biodegradeable. It has the API's SM certification, so it is safe to use and best of all it is an American made product, helping remove our dependance on foreign oil. Sorry for the commercial, but I believe in the product. Also, after using G-Oil, i gained 3 mpg on the highway.

Mike

 

G-oil is only PARTIALLY made from dead cows. It still has to be recycled in the same manner as regular dino or synthetic oils. Regular oil can be recycled into many other products ad infinitum and need never be a source of pollution.

The majority of oil consumed in the US is sourced from North America, only a minor portion comes from the bad people 'over there'.

 

I use 5W-30 Castrol Convetional Oil and Ford Motorcraft oil filter