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First uoa on my new to me F150. I'll take it! Going to go with 7,500 mile OCI.

This GC is from my stash and has a date code M04xxxxxxxx so it's 11 years old. Got 19 qts left - not quite 3 OCIs worth. From the last UOA I found a missing clip on the air box that was allowing air to bypass the filter. New clip and good seal on the air box fixed the extra wear. Some of extra...

The Delo 400 LE for sample dates 9/5/15 and 5/2/14 is the same oil. This is an extended OCI for 2 OLM cycles. I now have Rotella T6 in as I prefer the easier cranking of the 5w40 over the 15w40 during the late fall, winter, and early spring months where this truck get used the most, i.e. hunting...

Didn't intend to go 11,300 miles. Just ended up that way this time around. OEM interval is 10k miles. I'm satisfied with this oil and report. No reason to change for me. Lab: Blackstone Months in service: 12 Miles on oil: 11,300 Miles on Unit: 82,750 Makeup oil: 1 qt Oil: Castrol Edge Euro...

Bought this car 7 months ago with 84K miles. Super nice car for the age. I expected the first oil analysis would have some off numbers as the car hadn't been drive more than 9,000 miles in the last 6 years. I put 9.5K on it in 6 months of daily driving a 80 mile a day Metro Atlanta commute. I'm...

Miles on oil: 8,622 8,247 Miles on Unit: 206,925 198,303 Makeup oil: 1 qt Code: Delo Rotella T6 400 LE ALUMINUM 4 2 CHROMIUM 0 0 IRON 7 6 COPPER 2 2 LEAD 0 1 TIN 0 4 MOLYBDENUM 84...

First UOA on this car. Blackstone noted the Potassium and Sodium. There has been no noticeable loss of coolant. Since this car spent its first 51K miles in Illinois, this might be a result of winter driving and the numbers could diminish over the next couple of OCI's. I'll keep an eye on it...

Miles on oil: 8,247 Miles on Unit: 198,303 Makeup oil: 1 qt Code: ALUMINUM 2 CHROMIUM 0 IRON 6 COPPER 2 LEAD 1 TIN 4 MOLYBDENUM 55 NICKEL 0 SILVER 0 TITANIUM 0 POTASSIUM 0 BORON 54 SILICON 3 SODIUM 5...

Not a bad report. Did shear to a 30wt. I've got Valvoline VR-1 Racing 20w50 mineral in it now. I'll see how well that works out. Code: EQUIP. MAKE/MODEL: BMW Motorcycle 740cc OIL TYPE & GRADE: Shell Rotella T6 5W40 FUEL TYPE: Gasoline (Unleaded) OIL USE INTERVAL: 2504 Miles...

Over all I'm pleased with the results. Ran the oil almost 2 years. Might have to track down the silicon issue via the air filter intake system as BlackStone suggests. Only VOA I've seen of Amsoil 20W50 MCV didn't have that amount. They also suggested that copper was a little high relative to the...

Just purchased my second Audi A4 with a 2.0T engine - 2008 CPO. Have seen most of the RI_RS4's posts on the FSI engine oil issues. Are there any UOA's of GC in those type engines. I get outstanding results, UOA verified, with GC in the 1.8T engine and before jumping on the RLI 5w40 bandwagon I'd...

Interesting results and unexpected in one case. I just purchased the bike about a month ago and did an oil analysis before deciding on what oil to use before I did a complete service on the bike. I don't know whether the Castrol is motorcycle oil or auto as the last service receipt specified...

Here's my latest UOA on my Audi. I'm pleased with the report particularly with the fuel dilution, viscosity, and flash point. I think the over all wear numbers look good and the only elevated numbers Iron and Silicon are probably ok in that the voa numbers for those for that batch of GC are 4...

Here's my recent UOA on my 93 Mazda B2600i Pickup. A leaky head gasket was confirmed with the Mobil 1 UOA at 2/6/06. The head gasket was replaced at 255K. I ran a double Auto-Rx with Formula Shell 10w30 before this last 4900mi oci. Looks like I'll be keeping this trunk a while longer. Code...

With all the new GC M07 showing up at AZ around the USA, its time to put GC back in the "European and Import Motor Oils" title.

This was my second OCI with GC. The elevated Cu and Pb, according to Terry, is due to the fuel dilution. The elevated Si maybe due to a faulty vacuum check valve and cracked vacuum hose (no diag codes indicated this). The elevated K may to be from GC as the M04 has 2 PPM in posted VOAs and the...

I saw a Castrol commercial that was to dispell myths about oil. While Ron Ananian was supposedly debunking myths about oil there was a nice little side bar flashing. Funny thing was one of the side bar items was change your oil every 3000 miles or 3 months. Their commercial to dispell myths was...

GC Green Stash - 136 qts Sun 3/12 - less 4.5 rounded to 5 for OCI - 131 qts Wed 3/15 - Score 7 qts GC Green at $3.97 each (Price match with Adv Auto Parts) GC Green Stash - 138 qts.

Traffic was a mess this morning. Two accidents with multiple lanes blocked. I had to take two alternate routes to bypass them. As a result I was running a little late to work. On the second alternate route that I hadn't used in several months, lowe and behold, one of the streets goes by an AZ. I...

Yep. I've got a coolant leak. Head gasket is leaking. Most of that was external to the engine. This UOA confirms that some is getting in the oil. I already have a Dyson analysis and am initiating the suggested repairs. Most of the make up oil was the result of a leaking valve cover gasket which...