Proper Oil
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From the XK handbook for my car:
Engine oil temperature ranges
For climates ranging from -35°C to +50°C (-31°F to +122°F), the following oil viscosities may be used:
0W-30 protects from -35°C to +35°C (-31°F to +95°F).
5W-30 (preferred) protects from -30°C to +35°C (-22°F to +95°F).
0W-40 protects from -35°C to +50°C (-31°F to +122°F).
5W-40 protects from -30°C to +50°C (-22°F to +122°F).
Within the typical temperature range of most of the inhabited world, you can use 0W or 5W and 30 or 40 in whatever combination you like so no need to sweat it. 😉
Richard
Engine oil temperature ranges
For climates ranging from -35°C to +50°C (-31°F to +122°F), the following oil viscosities may be used:
0W-30 protects from -35°C to +35°C (-31°F to +95°F).
5W-30 (preferred) protects from -30°C to +35°C (-22°F to +95°F).
0W-40 protects from -35°C to +50°C (-31°F to +122°F).
5W-40 protects from -30°C to +50°C (-22°F to +122°F).
Within the typical temperature range of most of the inhabited world, you can use 0W or 5W and 30 or 40 in whatever combination you like so no need to sweat it. 😉
Richard
Last edited by panthera999; Jan 5, 2023 at 11:55 AM.
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@panthera999 fwiw Jaguar updated their oil specs and have since departed from the owners manual in 2018. @GGG posted the notice under the DIY sticky, sub heading>Engines.
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Richard
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@panthera999 fwiw Jaguar updated their oil specs and have since departed from the owners manual in 2018. @GGG posted the notice under the DIY sticky, sub heading>Engines.
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That notice specifically references the AJ133 engine a.k.a 5.0l. @panthera999 and I (and apparently yourself) have the AJ33 engine a.k.a. 4.2l. If you are feeding your 4.2 a 20wt oil you are doing it a mechanical disservice.
european 5w30s and everybody else’s ilsac 5w30s are on completely different planets in terms of viscosity but with real world drivers it makes no difference.
i use mobil 1 0w40 or the even cheaper quaker state 5w40 not because of film thickness but because i can drain at 13k+. the math never adds up when you use anything else
Last edited by xalty; Jan 5, 2023 at 12:50 PM.
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Indeed if you change your oil and filter regularly this is a general truism. Oil just seems to spark combative threads, lol.
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At the risk of being flamed by the faithful, I just installed Shell Rotella T 5W40 in my 2008 XKR, for use in Houston where it is also hot most of the time. Yes, Rotella is branded as a diesel oil. No, it doesn't say it meets Jaguar specifications. In a few months time I'll let you know if my engine has grenaded or continues to purr along. I suspect it'll be the latter (or if not, it probably won't be due to the Rotella). As with all oil threads, YMMV.
BTW, for full disclosure, I work for Shell. But not in the lubricants business, so don't ask me about the ingredients in Rotella, I would have no idea.
BTW, for full disclosure, I work for Shell. But not in the lubricants business, so don't ask me about the ingredients in Rotella, I would have no idea.
That and Wix filters.
....also replaced the K&N air filters that were in it with OE style Wix
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From: Sydney
To make it clear in the manual, It should state cold start engine oil temperature range. At operating temperatures the engine oil should be between 80-110DegC.
From the XK handbook for my car:
Engine oil temperature ranges
For climates ranging from -35°C to +50°C (-31°F to +122°F), the following oil viscosities may be used:
0W-30 protects from -35°C to +35°C (-31°F to +95°F).
5W-30 (preferred) protects from -30°C to +35°C (-22°F to +95°F).
0W-40 protects from -35°C to +50°C (-31°F to +122°F).
5W-40 protects from -30°C to +50°C (-22°F to +122°F).
Within the typical temperature range of most of the inhabited world, you can use 0W or 5W and 30 or 40 in whatever combination you like so no need to sweat it. 😉
Richard
Engine oil temperature ranges
For climates ranging from -35°C to +50°C (-31°F to +122°F), the following oil viscosities may be used:
0W-30 protects from -35°C to +35°C (-31°F to +95°F).
5W-30 (preferred) protects from -30°C to +35°C (-22°F to +95°F).
0W-40 protects from -35°C to +50°C (-31°F to +122°F).
5W-40 protects from -30°C to +50°C (-22°F to +122°F).
Within the typical temperature range of most of the inhabited world, you can use 0W or 5W and 30 or 40 in whatever combination you like so no need to sweat it. 😉
Richard
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From: Evesham, Worcs, UK
Richard
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That notice specifically references the AJ133 engine a.k.a 5.0l. @panthera999 and I (and apparently yourself) have the AJ33 engine a.k.a. 4.2l. If you are feeding your 4.2 a 20wt oil you are doing it a mechanical disservice.
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Santa Clause, I wish I had an oil pressure gauge on my 4.2L.
I wish I can find a 1/4" tap into the oil channels on my 4.2l, then I could attach a gauge.
When will OBD2 ports show oil pressure readings?
Well I now have Kms/hour, alternator voltage and coolant temp. Can't have everything I guess!
I wish I can find a 1/4" tap into the oil channels on my 4.2l, then I could attach a gauge.
When will OBD2 ports show oil pressure readings?
Well I now have Kms/hour, alternator voltage and coolant temp. Can't have everything I guess!
Veteran Member
Joined: Mar 2015
Posts: 1,327
Likes: 792
From: Evesham, Worcs, UK
Santa Clause, I wish I had an oil pressure gauge on my 4.2L.
I wish I can find a 1/4" tap into the oil channels on my 4.2l, then I could attach a gauge.
When will OBD2 ports show oil pressure readings?
Well I now have Kms/hour, alternator voltage and coolant temp. Can't have everything I guess!
I wish I can find a 1/4" tap into the oil channels on my 4.2l, then I could attach a gauge.
When will OBD2 ports show oil pressure readings?
Well I now have Kms/hour, alternator voltage and coolant temp. Can't have everything I guess!
The oil channel tap on your 4.2 is where the oil pressure sensor is currently fitted. It might well be 1/4 BSPP or BSPT but you can check this online. I've fitted several cars with a T-piece which enables fitment of both the original sensor and the graduated sensor. Usually a 10 minute job depending upon how accessible the sensor is.
Richard
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