KrazyK

Gonzo, I think the experts are admitting that the IMSB is a "wear" item and should be replaced as PM at @30K to 40K if I remember correctly. Thats just the way it goes and we're stuck with if you have 996 and some newer, I think all the way up to 2008? Even Bentley states it is considered a regular maintenance item.

KrazyK

Krom, just wondering, your area is a warm climate, right? Have you considered 5-40W or paying a little more for the JG street oil?

kromdom

Been learning a lot of new stuff from this thread and honestly, still on the fence Maybe after I get the UOA results, will look into other options.
(P.S. 2 trucks, 2 bikes, and 3 cars: been lucky to have had zero issues with Mobil 1)

alpine003

It's funny you mention it because I will be switching to Castrol 5w40 partly due to the fact that I only drive my car in 3 seasons and the fact that it is becoming readily available. Oh and the sales they had for under $5 each didn't hurt either. I captured my old m1 oil for Blackstone analysis just because its been awhile but also as a reference against the Castrol for the future.

Ubermensch

Yes, I've seen info on their racing oil before but the limited lifetime (~500 miles) makes it a tough option for me. What I came away wondering was even though some of these M1 oils have good levels of anti-wear additives, how does their shear stability compare to the data JR presented earlier.

Steve's MLC

I apologize for digging up this thread. I am going to try the DT40. In looking for a deal I have seen 02406and 02407 referenced after DT40 in the oil description. What is the difference?

KrazyK

Steve, the second number is just the part number for a case instead of 1 quart. I got mine from Summit in a few days. I think it added 20HP!!!!

Just joking but I think the bottom line is that thanks to JR's research, several "experts" have finally recognized or admitted the need for a high zinc content oil for the M96 engine to ensure its longevity. You will "hear" the difference in the engine when you swap and I will be testing mine after a few months or 3K miles.

Steve's MLC

Best deal I found was actually Amazon due to the free shipping. $131 for 12pack. Plus I got some Einszett rubber care while I was there. My sunroof rubber seal is cracking.

2300cc

[QUOTE=KrazyK;10188327]Steve, the second number is just the part number for a case instead of 1 quart. I got mine from Summit in a few days. I think it added 20HP!!!!

Did you first run the JG Break in oil before going to DT40?

Ahsai

Due to my high copper and iron level (~20ppm for both in 5k miles oil). I plan to try DT40 also.

Krazy, Jakes, or others, there are two JG break-in oils, 15W-50 and 5w-30. I assume we should use BR 15W-50 for 100 miles before using DT40?

TIA

dennis hiip

Just to be clear here. The preliminary use of the break in oil is to have a more accurate oil analysis. It's not necessary if one doesn't intend to do the OA. Right?

Ahsai

Based on my previous reading, my understanding is the break in oil will remove the detergent that is present in the old oil, which will dilute the ZDDP in the new DT40 oil if not removed. So without flushing, you can't get the full benefit of DT40, at least in the first oil change.

kdm

I just order a case (12 qts) of Joe Gibbs DT40 from JoeGibbsOilSales.com this weekend. Cost was $119.88 .and free shipping

KrazyK

Yep, thats the best price I have seen. I hope their giving JR his commission so I dont feel so bad for paying more.

Cloudspin

Anyone interested in two cases for $200 plus shipping or pickup at Chin Motorsports April 13th-14th event at Sebring?