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F-Type engine break in

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Old 02-14-2024, 12:36 PM
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Default F-Type engine break in

i remember back in the 60's and 70's my dad telling me that new engines have to seated properly and not to exceed 3000rpm for the first 1000 miles, since this is my first new car in along time, have 200klms on it, my question is, is there Jag recommended break in period?
 
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Old 02-14-2024, 12:59 PM
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Your owner’s manual does have some information about this. The break-in period involves the use of common sense more than anything else!
 
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Old 02-14-2024, 01:01 PM
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There is a break-in period. However, there is a typo in the manual (highlighted in green below) under the breaking-in instructions:

The vehicle is built using high-precision manufacturing methods, but the moving parts of the engine must still bed-in relative to one another. The process occurs mainly in the first 2 000 miles (3 000 km) of operation.During this breaking-in period of 2 000 miles (3 000 km):
  • Avoid frequent cold starts followed by short-distance driving.
  • Preferably take longer journeys.
  • Do not fully press the accelerator pedal during starts and normal driving.
  • Avoid continuous operation at high engine speeds and avoid abrupt stops.
  • Do not participate in track days, sports driving schools, or similar.
In addition, specifically up to 3 000 miles (2 000 km):
  • Drive at varying engine and road speeds. Do not exceed an engine speed of 4 500 rpm (revolutions per minute) and a road speed of 105 mph (170 km/h).
From 1 250 miles to 2 000 miles (2 000 km to 3 000 km):
  • Engine and road speeds can be increased gradually.
  • Engine speeds in excess of 5 000 rpm should only be used briefly, e.g., when overtaking.
At all times, not just during the breaking-in period:
  • Do not exceed 4 000 rpm until the engine has reached its full operating temperature.
  • Avoid laboring the engine by operating the engine in too high a gear at low speeds.
The break-in period is only 2000 miles. The green line above shows 3000 miles (2000 kms) which doesn't make sense as written because that should read 4500 kms if it was truly 3000 miles. They reversed the 3000 and the 2000 in that line. If you flip them, it is consistent with everything else in the section. I've confirmed this with multiple JLR dealers. For the first 1250 miles, keep it below 4500rpm and vary the driving. From 1250 to 2000 miles, try to avoid sustained runs over 5000rpm but it's okay if you do go over 5000rpm. After 2000 miles, unleash it!
 
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Old 02-14-2024, 01:15 PM
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The breaking-in info was missing from the original handbook, and the dealer ‘confirmed’ there wasn’t one. They revised the manual later.
 
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Old 02-15-2024, 08:41 AM
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I would add that it is a good idea to drain the factory oil and refill it with the proper factory specified oil and change the oil filter around the time it is broken in. I did mine at about 2750 miles.

I assume that you qualify for the free annual scheduled maintenance which includes oil & filter changes, but you don't want to wait a year and however many miles that you will accumulate before changing out the original oil. There are lots of very helpful threads here regarding how to do an oil and filter change and if you are at least slightly mechanically inclined, it is an easy process with a Mityvac extractor. The cost for the oil and filter is usually under $130. Just be sure you keep your receipts and use the proper Castrol Edge Professional EC5 0W-20 weight oil. And/or buy the oil from your dealer's parts department.

The last time I bought a quart they gave me the VW/Porsche 508 CO/509 spec. approved Castrol Edge Professional 0W-20 oil as the EC5 formula which meets Jaguar/Land Rover spec. STJLR.03.5006 seems to be discontinued. The VW/Porsche oil is close enough in formula to be completely interchangeable.
 
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Old 02-15-2024, 02:18 PM
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I would concur with all of the above. Allegedly, there is enough precision in today's engine manufacturing that you don't have to do the first, quick change that Dwight suggested. I may be old school (with a Doctor of Motors certificate to prove it), but totally agree with his recommendation. Unfortunately, JLR won't cover the cost of an early oil change, but I think it's a nominal investment to get your new toy off to a healthy start for a long life. Last I knew, both Castrol Edge Professional EC 0W-20 and Millers Oils XF Premium C5/C6 0w-20 Fully Synthetic listed the JLR spec, but there are others. I've been getting mine from www.fcpeuro.com
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