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Lucas Oil?


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I am coming up on my next oil change and was wondering if I should put an additive in. I have been putting Lucas oil in my wifes car for a while now and seem to like the results, but am a little skeptical with doing it to the Porsche due to possibilities of the IMS failure. But then again, it could help with the IMS problem and help the engine move more freely.

Has anyone put lucas oil in there car? Could it make the oil too thick?

I have a 2000 Boxster.

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I am coming up on my next oil change and was wondering if I should put an additive in. I have been putting Lucas oil in my wifes car for a while now and seem to like the results, but am a little skeptical with doing it to the Porsche due to possibilities of the IMS failure. But then again, it could help with the IMS problem and help the engine move more freely.

Has anyone put lucas oil in there car? Could it make the oil too thick?

I have a 2000 Boxster.

If you use an ACEA A3, B3, B4 rated full synthetic (preferably not a 0W-anything weight), you do not need additives. And no oil is any better than any other when it comes to the IMS bearing; that bearing fails because it is sealed and does not get lubrication from the engine oil......

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If you use an ACEA A3, B3, B4 rated full synthetic (preferably not a 0W-anything weight), you do not need additives. And no oil is any better than any other when it comes to the IMS bearing; that bearing fails because it is sealed and does not get lubrication from the engine oil.

+1

And API SL minimum, SH or SJ better. Porsche specs 0W-40, 5W-40 and 5W-50. I agree with not using 0W and making sure oil is full synthetic.

I'm currently using 5W-40 Motul 300V (not on P-approved list) and toying with 10 or 15W for spring's oil change. ZDDP is your engine's friend (are your friends?), but some worry about cat damage from it.

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Porsche specs 0W-40, 5W-40 and 5W-50. I agree with not using 0W...........

What is wrong with 0W?

I have been using it for 3 years with no ill effects......and no consumption.

It should flow better on cold start-up which is where most wear occurs.

I am (currently) a certified GM and Toyota service manager (also previously Honda and Nissan).

I think the "0" stands for zero problems.

I'm sold on it!

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"What is wrong with 0W?"

Other than the simple fact that some 0W weight oils, and specifically Mobil 1 0W-40, demonstrate very poor used oil analysis data, particularly in terms of TBN fall off after 3-4 k miles of everyday street driving……………probably nothing.

Edited by JFP in PA
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Initial falloff is always signifigantly greater than subsequent testing shows (normal).

TBN is only one aspect to consider but I do trust Porsche. Does the 5W-40 test different?

Purely acedemic for me as my Mobil-1 gets changed once a year (3,000 - 4,000 miles) anyway.

This is one of those deals where everyone must make their own choice.

More info at this link:

http://www.blackstone-labs.com/do-i-need-a-tbn.php

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Initial falloff is always signifigantly greater than subsequent testing shows (normal).

TBN is only one aspect to consider but I do trust Porsche. Does the 5W-40 test different?

Purely acedemic for me as my Mobil-1 gets changed once a year (3,000 - 4,000 miles) anyway.

This is one of those deals where everyone must make their own choice.

More info at this link:

http://www.blackstone-labs.com/do-i-need-a-tbn.php

We have been collecting UoA's on several brands and weights of oils for years. Mobil 1's problems began several years back when we began to notice lower initial TBN's, very high TBN drop off with low mileage, poor ability to "stay in grade" with light use & low street miles, very poor film strengths, as well as other issues. We also noted that several grades (15W-50, once a staple for the air cooled crowd) lost all ACEA ratings. So it's not just one Mobil 1 weight, it's the entire product line. Mobil 1 used to get great test results, but that is no longer the case.

As the result of Mobil 1's change of direction, we stopped using the entire product line and now use a 10W-40 synthetic from another company (we tested their 5W-40, which was not bad, but the performance of their 10W-40 was superior) that continues to demonstrate excellent UoA's, even after hard track use, as our standard offering for water cooled models. We still get to test M1 products, often from new cars coming in for their first oil change, but things have not improved for Mobil 1, particularly the 0W-40 the factory seems to like.

You can continue to believe in Porsche’s vaunted "approved oil list" if you like; we will continue to trust the data we collect............

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Not to fan the already very hot topic of oils but...

I recently did my first oild change on my 06 Carrera. It had the Mobil 1 0w-40 in it. I changed to the fully synthetic Castrol 5w-40 and the engine is much quieter on cold start up. (on the Porsche appreved list by the way..)

I think I gained 30-40 hp as well :lol: :rolleyes:

Seriously this is a highly debated subject and like the other poster said it's really a personal choice.

:cheers:

Edited by phillipj
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You can continue to believe in Porsche’s vaunted "approved oil list" if you like; we will continue to trust the data we collect...........

I respect the work you have done here. What brand would you recommend?

Currently, and for some time now, we have benn using Castrol Syntec 10W-40. What I like is that the most recent UoA is as good as ones taken 3 years ago; the product continues to be a sound choice. And, by-the-by, we have no affiliation with Castrol; we can get just about any brand of oil out there, but settled on Castrol based upon its continued performance.

Edited by JFP in PA
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Wow, you guys really did shine some light on this subject. It looks like i am also going to be using some Syntech 10W-40 on my next oil Change.

I am still thinking about adding some Lucas oil tho. I will probably use less then recommended, but we will see what happens. I guess if it doesn't work well, i can always skip in on the oil change after.

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Skip the Lucas, it's snake oil.

My current recommendation for an approved Porsche oil is Castrol Syntec 5w40, as it's easy to find.

Although much harder to find, Motul 8100 5w40 is another awesome Porsche approved oil.

Porsche approval aside, there are lots of excellent 5w40 and 10w40 oils to choose from.

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Ohh I forgot the mention, I live in the bay area in CA, It rarely gets below 30 degrees and above 95 degrees. Should I use 5W40 or 10W40?

We use 10W-40 year round; the outside air temp at the shop is currently 22F.....................you will be fine with 10W-40.

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