Which oil Grade 10W40 or 5W40 ?
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Which oil Grade 10W40 or 5W40 ?
i have an S8 1998 the manual says that i should use 10w30 or 10w40 but i am wondering if i can use 5W40 full synt. is it better ?or should i stick with the 10W40 full synt.
by the way i live in a warm area which temperature varies from +3 degrees Celsius in winter time to +40 degrees Celsius in summer time.
by the way i live in a warm area which temperature varies from +3 degrees Celsius in winter time to +40 degrees Celsius in summer time.
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From: Houston
I've used AMSOIL 10/30 for decades, no matter what the temps and never had any problems. On the other hand, if your driving includes continuous hi-speed (or autocross)
driving in higher temp conditions 10/40 should be considered.
It's nice to have a 15 year old engine and not have any crankcase deposits..
Synthetics are the only lubricants that do this.
pc
driving in higher temp conditions 10/40 should be considered.
It's nice to have a 15 year old engine and not have any crankcase deposits..
Synthetics are the only lubricants that do this.
pc
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Joined: Oct 2008
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From: Kansas City, Missouri
Every time im at Walmart I look in the diesel oils section for 5w-40 Mobil 1 in a 4 quart container. They specifically market it for Turbo Diesels but I've been using it for my past 8 (10k mile) oil changes with no problems whatsoever. Usually runs $26 a bottle, two completely does an oil change. 2000 A8.
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Every time im at Walmart I look in the diesel oils section for 5w-40 Mobil 1 in a 4 quart container. They specifically market it for Turbo Diesels but I've been using it for my past 8 (10k mile) oil changes with no problems whatsoever. Usually runs $26 a bottle, two completely does an oil change. 2000 A8.
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From: East TN
You can use anything from 0W30 to 10W40...and adjust your choice depending on your general climate >>>
0W30 in extreme cold and 10W40 in high heat...somewhere in between for your situation. You're not gonna blow up your engine with the wrong grade oil...it's just an internal combustion engine that follows the same rules as a 6's V8 or straight 6.
If it's always used dino oil, stick with that...if you switch to synthetic late in the engines life, you'll likely spring new oil leaks...and if it's a 32V, they already hemorrhage oil like a hemophiliac in a nail storm.
If it's used synthetic most of it's life (as Audi & I recommend), stick with that, in a grade fitting to your climate.
0W30 in extreme cold and 10W40 in high heat...somewhere in between for your situation. You're not gonna blow up your engine with the wrong grade oil...it's just an internal combustion engine that follows the same rules as a 6's V8 or straight 6.
If it's always used dino oil, stick with that...if you switch to synthetic late in the engines life, you'll likely spring new oil leaks...and if it's a 32V, they already hemorrhage oil like a hemophiliac in a nail storm.
If it's used synthetic most of it's life (as Audi & I recommend), stick with that, in a grade fitting to your climate.
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[QUOTE=silverd2;24323048]You can use anything from 0W30 to 10W40...and adjust your choice depending on your general climate >>>
0W30 in extreme cold and 10W40 in high heat...somewhere in between for your situation.
So if i use 5w40 Full synth instead of 10W40 using its good ?
0W30 in extreme cold and 10W40 in high heat...somewhere in between for your situation.
So if i use 5w40 Full synth instead of 10W40 using its good ?
Thread Starter
AudiWorld Member
Joined: Feb 2007
Posts: 166
Likes: 0
[QUOTE=silverd2;24323048]You can use anything from 0W30 to 10W40...and adjust your choice depending on your general climate >>>
0W30 in extreme cold and 10W40 in high heat...somewhere in between for your situation.
So if i use 5w40 Full synth instead of 10W40 its good ?
0W30 in extreme cold and 10W40 in high heat...somewhere in between for your situation.
So if i use 5w40 Full synth instead of 10W40 its good ?
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