nycebo

Okay, I went to PCA (Joel Reiser is one of the more knowledgeable and informative guys out there) to find more detail on oil (https://www.pca.org/tech/tech_qa_question.asp?id={D511B82E-9AE1-4564-8F74-724C0847AD24}). Here's what he had to say: "The 15W-50 is for warmer climates and/or tougher service, and the 0-40 is for cooler climates. I hope I did not misunderstand the question. 0 will flow better at a lower temperature than 15 will. Likewise the 50 will handle the higher temps better than the 40 will. In warmer weather and on the track I run the 15-50, whereas I run 0-40 in my street car for the cold winter weather. So I would say 'no, it only has advantages for the colder weather'. Since publishing the note above, I have additional information from Bruce Anderson and Peter Smith to pass along. Porsche is currently recommending the following in Technical Bulletin 1701, "Engine Oils Approved by Porsche": Castrol/Syntec 5W-50 Exxon/Superflo Supreme Special 15W-40 Mobil 1 5W-30, 10W-30, and 15W-50 Sunco Synturo Gold 5W-40 Havoline Formula 3 synthetic 5W-40 Valvoline/ High Performance Synthetic 5W-30 Note that Mobil1 0W-40 was not available yet at that point in time. We are thinking that Porsche favors the 40 top weight over the 50 for street use because it is friendlier to the hydraulic valve adjusters (993 and 986/996) and other areas of the VarioCam valve train (986/996). In the case of the former, we have seen some of these newer cars struggle to achieve compression on startup in certain circumstances because the hydraulic valve adjusters are not pressurizing correctly. So the revised answer is 'yes, it offers valvetrain advantages provided you keep the oil temperatures within specs'. In other words I will still run 15W-50 in my GT3 Cup car with the hydraulic valve adjusters because it is still heavier duty service than a 0-40 would be best for. But on the newer street cars the 0-40 is probably better if your climate is not hellaciously hot and you don't overdrive the car. Joel Reiser / Bruce Anderson- PCA Website 2/02" He also wrote (https://www.pca.org/tech/tech_qa_question.asp?id={512C8E59-91E5-4222-A730-89791DA56B43}): "Just a little over a month ago on 11-30-01, Porsche issued a new oil bulletin that is significantly changed. The latest list of approved synthetic motor oils from Porsche includes Mobil 1 0W-40, Mobil 1 5W-40, Valvoline High Performance Synthetic, 5W-30, and there is also a Castrol/Syntec 5W-50 listed. As before, Porsche says the oils can be used for all 4, 6, and 8 cylinder Porsche engines from 1973 on. The Mobil 1 0W-40 now comes in all the new Porsches, including the Turbos, but some owners have had a problem finding it in retail outlets. The biggest change in this latest data is that temperature charts lowered the upper limit on the 0W-30 synthetic oils that were previously 40C (104F) to 30C (86F). These newest Porsche temperature charts do not show a synthetic 10W-30, but do show 10W-40s and 5W-40s going to a higher (but undefined) temperature limit than the 0W-30 synthetic oils which have the revised lower maximum limit of 86F ambient temperature. We will keep trying to learn more about these changes and pass them on, but in the meantime, I guess I would feel better about a 5W-40 or higher oil for running under warm ambient temperatures." So, I don't know whether the smart thing is to go with 0W-40 or 5W-40 from here on. Since I am in the northeast, I'll likely stick with 0W-40. 1999Porsche911, I get what you are saying, and always prefer to err on the side of caution, but do you think that the 15W-50 is really that much better or more warranted? Cheers.

Okay, I found this information on the Mobil web site using their 'Help me decide' tool for selecting the appropriate oil for the car (I guess Kim was right): What's the right oil for my car? The company that manufactures your vehicle recommends this Mobil 1® product, or has a special requirement. Current Vehicle: Year: 2000 Make: Porsche Model: 911 Engine Type: 6cyl. 3.4Liter Mobil 1 0W-40 A fully synthetic motor oil, Mobil 1 0W-40 with SuperSyn Technology exceeds industry standards and the major leading builder requirements, enabling the product to keep performing well after conventional oils cannot. Mobil 1 is recommended by leading car manufacturers as initial fill. Special Filter Not Required This website contains the most current information available at the time of website launching, and is updated periodically. Always consult your vehicle manufacturer's manual for information specific to your automobile. I guess the next question should be if there is any advantage or disadvantage using the 15W50 if Porsche is specifically stating that we use 0W40. I'll check around and get back to you.

I just added Mobil 15W50 to my car. I live in New York. I have no idea what I am doing and am going to rummage the net for some better clarification.

Does the Becker Traffic Pro work in the United States? Also, would it be compatible in a 2000 996 cab?

Better traction, but it comes at the expense of tracking grooves on grooved pavement and often inferior wet weather performance marked most notably by hydroplaning. Of course, many tire manufacturers have designs spectacular treads that drive water from under the tire and improve wet weather performance. Of course, this reduces rubber contact with the road, which reduces dry weather traction. Of course, wider tires would add back more rubber in contact with the road. It's a vicious circle. Unless you are tracking it, 265 should be plenty enough for daily driving. The real question is the compromise you want to make between wet and dry handling.

I have not heard anything like this before. Do these cold air intakes actually result in increased wear?

First off, this issue has been discussed almost everywhere here. Clearly, there is the camp that feels changing intake/filters makes a difference and then there are those that feel it doesn't largely because of the following: "Why wouldn't Porsche have increased inflow in the first place if that was all that was required for easy HP gains?" That's a good question. I don't have an answer. But, I have undertaken some simple performance mods on my motorcycles and dynoed it all things equal except for the change. It's unbelievable what a freer flowing exhaust and intake did for my bike. And it was ABSOLUTELY noticeable on the road...scary noticeable from stock. Now, perhaps the bike benefitted from shedding 20 lbs from the stock exhaust to aftermarket, and perhaps it's more noticeable because bikes are SO much lighter. But, whatever the case may be, it just makes sense. And the reason it makes sense is because Porsche has something called California emissions that it has to deal with. The minute you start sacrificing performance for the environment, you start to give up a little edge. Accordingly, intake/exhaust mods from after-market companies that are not beholden to these emissions standards should add some measure of power. The REAL question is, "How noticeable?" I guess that's a matter of perspective and perception. As for me, I haven't modded my 911 yet, but I am getting very close to swapping out the exhaust and the intake (or at least the filter). We shall see...

When you switch to the clear marker bulb covers, do you also need to switch from a clear to an amber bulb?