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Old 04-26-2021, 06:17 PM   #1
Vza
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Oil Switch

Hi,I've been running M1 0w-40 in my 99 Boxster with 135K plus miles. I track the car and was thinking of switching to Castrol Edge 5W-40 any thoughts ?

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Old 04-27-2021, 05:08 AM   #2
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Hi,I've been running M1 0w-40 in my 99 Boxster with 135K plus miles. I track the car and was thinking of switching to Castrol Edge 5W-40 any thoughts ?

Thanks V
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Old 04-27-2021, 05:34 AM   #3
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Hi,I've been running M1 0w-40 in my 99 Boxster with 135K plus miles. I track the car and was thinking of switching to Castrol Edge 5W-40 any thoughts ?

Thanks V
What is your reasoning for making the switch? Getting an oil analysis done may be a good first step to get a baseline on your engine and oil.
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Old 04-27-2021, 06:03 AM   #4
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Quote:
Originally Posted by Vza View Post
Hi,I've been running M1 0w-40 in my 99 Boxster with 135K plus miles. I track the car and was thinking of switching to Castrol Edge 5W-40 any thoughts ?

Thanks V
That's what I've been running in mine for the last 80k or so miles.
So far so good.
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Old 04-27-2021, 04:59 PM   #5
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No reason in particular. A few treads on running an oil a little heavier on the winter side. Although it's mostly in the garage for the winter. I do have a brief hi rev and noise on start up. I've read this normal for a boxster. And I do track it ...so maybe something for more protection. I did have the oil analyzed for a baseline. Does it have to be the same oil type if I do it again? V
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Old 04-28-2021, 05:03 AM   #6
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No reason in particular. A few treads on running an oil a little heavier on the winter side. Although it's mostly in the garage for the winter. I do have a brief hi rev and noise on start up. I've read this normal for a boxster. And I do track it ...so maybe something for more protection. I did have the oil analyzed for a baseline. Does it have to be the same oil type if I do it again? V
Thinking the high rev and noise might be the starter. Consider looking into it.
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Old 04-29-2021, 05:12 AM   #7
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I did have the oil analyzed for a baseline. Does it have to be the same oil type if I do it again? V
You would want a few analysis using your current oil before switching, if you want to do a comparison of the analysis between the two oils.

If you want the best protection at the track, then you may want to look at a race oil, but the change intervals are much shorter.
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Old 04-29-2021, 04:52 PM   #8
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In my opinion, the brand of oil is less important than the frequency of changes.

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