Hello. My first New Topic post here. Had a fellow Audi owner post a UOA before on my behalf, and have read some posts on here before, but never joined. I get referred here a lot from another Audi forum member "Audi Junkie", who I also call "Oil Junkie". So on to this post;
I had a UOA done on my final run of Red Line oil before switching to Motul. This was their 5W-40. Short mileage, but I wanted to keep check on the engine condition, as well as the oil (since I used 5W-30 the previous time with a little over 8K miles). I used Red Line for about 8 years on my VW 1.8/t's and now in my '03 Audi A4 1.8t (just from 10K to 22K approx). It was factory Castrol up to 10K. I switched to Motul because I was looking for a 100% synth that wasn't your typical "OTC" major brand oil (Mobil, Castrol, Valvoline,..), carried manufacturer approvals, was European possibly, and had a full line of what I thought were "high-end" versions of OEM oils/fluids. FUCHS was another one I came across in my research, as well as Pentosin, Lubro-Moly, Royal Purple, and yes, AMSOIL was one of them as well. Motul seemed to be the most interesting of the bunch though (interesting history as well), so I decided to go with them. They weren't really too well known here in the US it seemed (especially on the Audi forums), but I made my choice. I eventually discovered some local dealers and had my Motul collection (also using their Gear300, DOT5.1 Brake Fluid and even their Inugel coolant). Might be expensive when compared to the others, but I'm happy with the companies product line. I was really intrigued with the use of ester synths as well (plant based oils) compared to the PAO and hydro cracked types. I don't profess to be a tribologist or oil aficionado, but I do care enough to use a high-quality synth in my cars and I am willing to spend some $$$ for it if I feel it's worth it.
A quick history: I've been doing extended drains (8-12K miles) for the 8 years that I had used Red Line oils. My '85 Gti 1.8l had almost 300K miles on it (about half of that with Red Line) before I sold it and it was never rebuilt. Surprising, because of how I drove it; like a race car 98% of the time (burns outs, high revs/speeds constantly and mostly in SoCal temps). Anyways, it seemed once I began using Red line oil, as well as a Mecca performance filter (which I still use to this day on my 1.8ts), the engine came back to life and the time/mileage spent afterwards worked pretty well.
My next car was a '00 VW 1.8t Beetle, which from about 1K miles to about 64K miles was running on Red Line (5W-30/40, 10W-30/40) with extended drains and the Mecca filter again. I didn't drive it has hard as my Gti, but I still pushed it. Still running strong with 66K miles. Too bad I wasn't doing UOA's all this time. I recently switched the oil in that car as well to Motul. I used the 8100 Ester E-Tech 0W-40 in that one and the 300V 5W-40 in my A4. I used the 300V in my A4 mainly to see how it would hold up for street use. I talked with MotulUSA and a person there felt it was fine (he was using the Etser E-Tech like me, but was going to try the 300V). My A4 has an MTM Stage 2 upgrade (215hp/245tq) and I plan on a Stage 4 which will put it up 300+ hp, so I wanted to try the 300V to see how it held up. It has about 5K miles now and I'll be taking a sample soon to send that in and get a UOA done.
Car Info: '03 Audi A4 1.8t QMT5. Always use 91 octane fuel in SoCal. Also use Red Line Fuel System Cleaner once in a while. Has 4" Mecca Performance filter.
I think the increased Silicon reading was due to a air filter change at 20K mile service. Plus the fact that before that, I removed/replaced the intake a number of times when working on the headlights, or removing it to clean the "pre-filter".
Anyways, here's the recent UOA from Blackstone Labs
And here was my previous UOA (it was posted a while back by QuattroPete).
And here's a picture of the Motul family;
Not sure why the UOA images aren't showing up. They're done the same as the other image that's working.
[ June 11, 2004, 04:17 PM: Message edited by: A4NCAR ]
I had a UOA done on my final run of Red Line oil before switching to Motul. This was their 5W-40. Short mileage, but I wanted to keep check on the engine condition, as well as the oil (since I used 5W-30 the previous time with a little over 8K miles). I used Red Line for about 8 years on my VW 1.8/t's and now in my '03 Audi A4 1.8t (just from 10K to 22K approx). It was factory Castrol up to 10K. I switched to Motul because I was looking for a 100% synth that wasn't your typical "OTC" major brand oil (Mobil, Castrol, Valvoline,..), carried manufacturer approvals, was European possibly, and had a full line of what I thought were "high-end" versions of OEM oils/fluids. FUCHS was another one I came across in my research, as well as Pentosin, Lubro-Moly, Royal Purple, and yes, AMSOIL was one of them as well. Motul seemed to be the most interesting of the bunch though (interesting history as well), so I decided to go with them. They weren't really too well known here in the US it seemed (especially on the Audi forums), but I made my choice. I eventually discovered some local dealers and had my Motul collection (also using their Gear300, DOT5.1 Brake Fluid and even their Inugel coolant). Might be expensive when compared to the others, but I'm happy with the companies product line. I was really intrigued with the use of ester synths as well (plant based oils) compared to the PAO and hydro cracked types. I don't profess to be a tribologist or oil aficionado, but I do care enough to use a high-quality synth in my cars and I am willing to spend some $$$ for it if I feel it's worth it.
A quick history: I've been doing extended drains (8-12K miles) for the 8 years that I had used Red Line oils. My '85 Gti 1.8l had almost 300K miles on it (about half of that with Red Line) before I sold it and it was never rebuilt. Surprising, because of how I drove it; like a race car 98% of the time (burns outs, high revs/speeds constantly and mostly in SoCal temps). Anyways, it seemed once I began using Red line oil, as well as a Mecca performance filter (which I still use to this day on my 1.8ts), the engine came back to life and the time/mileage spent afterwards worked pretty well.
My next car was a '00 VW 1.8t Beetle, which from about 1K miles to about 64K miles was running on Red Line (5W-30/40, 10W-30/40) with extended drains and the Mecca filter again. I didn't drive it has hard as my Gti, but I still pushed it. Still running strong with 66K miles. Too bad I wasn't doing UOA's all this time. I recently switched the oil in that car as well to Motul. I used the 8100 Ester E-Tech 0W-40 in that one and the 300V 5W-40 in my A4. I used the 300V in my A4 mainly to see how it would hold up for street use. I talked with MotulUSA and a person there felt it was fine (he was using the Etser E-Tech like me, but was going to try the 300V). My A4 has an MTM Stage 2 upgrade (215hp/245tq) and I plan on a Stage 4 which will put it up 300+ hp, so I wanted to try the 300V to see how it held up. It has about 5K miles now and I'll be taking a sample soon to send that in and get a UOA done.
Car Info: '03 Audi A4 1.8t QMT5. Always use 91 octane fuel in SoCal. Also use Red Line Fuel System Cleaner once in a while. Has 4" Mecca Performance filter.
I think the increased Silicon reading was due to a air filter change at 20K mile service. Plus the fact that before that, I removed/replaced the intake a number of times when working on the headlights, or removing it to clean the "pre-filter".
Anyways, here's the recent UOA from Blackstone Labs
And here was my previous UOA (it was posted a while back by QuattroPete).
And here's a picture of the Motul family;

[ June 11, 2004, 04:17 PM: Message edited by: A4NCAR ]