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Can you use full synthetic engine oil in a x type jaguar?
Would it make any difference using full synthetic oil instead of part synthetic oil as i bought the full synthetic by mistake.It is a 2001 x type jaguar 2.5 petrol.
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I would consult the owner's manual or an online forum for Jaguar. Synthetic oil can be used in any engine that regular oil is used in. The weight of the oil should be specified in the owner's manual and probably also on a decal beneath the hood, maybe on the air cleaner. I am not familiar with Jaguars so don't know what they specify. Most modern cars use 5-X muti-vis oil; It is supposed to act like 5 W oil on starts to make it easier to start and to get oil circulating to the top of the engine where it has dripped down since the engine was last run. The X would be the supposed viscosity once the engine is running. You can always use a heavier oil and it will provide better protection of internal parts, particularly at the top of the engine on cold starts but you generally sacrifice a little fuel mileage.
The car takes 5w-30 semi synthetic oil. However, if you have never put synthetic oil in the car I would recommend using regular oil. I would also advise you check with your local jaguar dealer. The reason for this is if your car is not use to that kind of oil from day one it could cause seal leaks.
I would recommend a good 10W40 standard oil. The V-12 uses almost a case of oil ( 11 qts ) per change and synthetic would be really pricey. Also the Jag engines of that period had a tendency to leak oil, so much so that Jaguar put out a notice to call it "controlled seepage", so the rumour goes. Synthetic oil will leak at a greater rate than a nonsynthetic in an engine with leakage problems.
You will need to use a 10W-30 grade engine oil, such as any of the following Mobil products. "Fully synthetic" oils are more expensive. Conventional oils or syn blend engine oils are fine for the vehicle but need to be changed more frequently.
That depends on the brand and type of synthetic you use, as well as the type of oil filter. Mobil 1 makes an extended service full synthetic, which they claim is good for 15,000 miles between changes. Amsoil full synthetic advertises 25,000 miles between changes; but only if you also install and use one of their super fine bypass oil filters, in addition to your car's regular oil filter.
Since the actual mileage you can go between oil changes is very dependent of the type of driving you do, the brand of oil you use, and the condition of your engine; there really is no hard and fast rule. That's why commercial vehicle fleets regularly take samples of their oil, and send it to laboratories for analysis to determine whether it needs changing. Sometimes it is necessary to change oil more often than expected; other times you can go longer between changes. My experience has been that, when oil is nearing the mileage where it needs changing; the rate of consumption will significantly increase. So when my car needs a quart added, it usually means it ought to be changed.
Regardless of the oil you use; if the change intervals are longer than the car manufacturers recommendations, it will void your factory engine warranty. That said; I have typically felt comfortable with 7,500 mile change intervals when using full synthetic oil of an appropriate viscosity.
I would also add that it is much safer to stay with only one brand and type of oil for the life of your vehicle; this is true for both conventional and synthetic oils. I have seen too many engines ruined by switching to a different brand or type of oil. Mobil 1 is chemically different from all the other synthetic oils, and is closer to petroleum oil in its characteristics. I prefer it for that reason. They also make a european formula 0W-40 full synthetic, which is available in the U.S, and is my preferred viscosity for all around use. It is not one of their extended service oils; but the protection is far superior to other oil grades. Not all stores carry it; but it can often be ordered from stores which carry other Mobil 1 products; and can always be bought from the local Mobil oil distributor.
Use exactly what is specified on the oil fil cap, or the owners manual, ESPECIALLY the weight (5w 20 wt for example).
If your question was asking about synthetic, that answer depends on how much oil the engine consumes. Synthetic is not forgiving and will make consumption worse. If you can use synthetic, that has to be better.
One other option is syntehtic blend. These are typically high mileage oils, Caster oil makes one...It uses a blend of regular and synthetic, and also helps lower consumption.
The manuel should tell you what weight of oil to use, IE 10w-30. If you are asking what brand to use, it really does not matter what brand. Many of the different brands are all actually produced from the same company with different labels on them. The laws that oil companies must follow when producing oil are very strict so one brand of oil is not really different from the other. The differences are so small that there would be no noticable affect on your vehicle. It is the same with fuel as well. One brand of fuel is not any different from the other and unless you have a very high performance engine if your vehicle, the difference between low octane and high octane will not be noticable
As far as the type of oil to use, you have oil, partial synthetic oil, and full synthetic oil. Full synthetic is the best.
I would go with full synthetic with what ever the reccomended weight is for your vehicle. Many cars now have what type of weight to use on the oil cap.
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