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2010 Tahoe in police service. 5.3L with 111,872 mi on unit. Napa Gold air and oil filters. 1 qt make up oil added. Schaeffer's Supreme 7000 5W-30 SN. Analysis by Polaris Labs. Fe--- 9 Cr--- 0 Ni--- 0 Al--- 2 Cu--- 16 Pb--- 0 Si--- 6 Na--- 364 K---- 2 Mo--- 327 Sb--- 306 Mg---...

Freightliner FL80 commercial chassis in fire engine service. Allison World Class MD3060. Mobil Delvac ATF, Allison filters. 337 hrs fluid, 1214 hrs unit. Fluid has been in service for 5 years. Previous fill was the factory fill. Factory fluid/filters changed out at 877 hrs. Reports by Polaris...

I saw this oil locally for the first time and curiosity got the best of me. It was relatively reasonably priced (for a gas station) so I picked some up. I visited the Dennison Lubricants plant in MA that produces this oil about a year and a half ago. IIRC, this would be the same product as the...

Here's another for you, Jim Allen and Dnewton3! Caterpillar 3126, fire engine service First run on Schaeffer's Supreme 7000 15W-40 CJ-4 1210 hrs on unit, 295 hrs and 4 years on oil. Napa Gold oil filter NO make up oil. Analysis by Polaris Labs (295 hrs) Current 165 hrs 104 hrs New oil...

Ariens ST624E. Currently running TEXACO Havoline 5W-30 SN.

2008 Nissan Rogue SL AWD, QR25DE and CVT 86,023 mi on vehicle 3006 miles on oil Napa Nascar Select oil filter AFE Pro Dry S air filter Oil was in service from mid October to mid January. Mostly in town and rural driving. Analysis by Dyson. Fe---5 Cu---1 Sn---0 Pb---0 Cr---0 Ni---0...

Schaeffer's Supreme 7k 5W-30 SN Sampled from a shaken 5 gal pail. Analysis by Schaeffer's Webscope. Fe---1 Cr---0 Pb---0 Cu---0 Sn---5 Al---2 Ni---0 Ag---0 Ti---0 V----0 Si---8 B----0 Na---367 K----6 Mg---21 Ca---1730 P----794 Z----915 Mo---350 Ba---2 Visc @100C= 9.8 Ox=...

I have been wondering if there is any reason one shouldn't use LC20 in conjunction with SN oil? I have been a user for many years and wonder if it is ok to continue using it with modern oils. Any concern using LC with ester or biobased oils? Many thanks in advance! REDDOG.

2010 Chevy Tahoe 5.3 in police service. A little history: The FF was dumped at 1037 mi (I believe the OLM showed 75 % remaining-don't have the record handy). The OLM was not reset to keep the drain shorter with the second fill which is the data to the right(also Schaeffer's 7k 5W-30)-oil was...

Here's another for you, Jim Allen! Caterpillar 3126, fire engine service First run on Schaeffer's Supreme 7000 15W-40 CJ-4 1080 hrs on unit, 165 hrs and 2 years on oil. Napa Gold oil filter No make up oil. Analysis by Polaris Labs Code: Current test 104 hrs New oil Fe 13...

2009 Cummins ISL 425 HP. Factory installed oil and filter (spin on filter contains a bypass oil filter). Fire engine service. 172 hrs on oil and filter. 172 hrs on unit. Fe----70 Cr----1 Al----16 Cu----51 Pb----4 Sn----0 Cd----1 Ag----1 V-----0 Si----24 Na----6 K-----75 Ti----1...

2008 Ford Crown Vic Police, 4.6L in police service. First column=Schaeffer's 7k 5W-20 10,390 mi + 274 hrs idle time (hour meter only accumulates time while idling in park)on oil. By Ford's formula this is equivalent to 19,432 mi on oil. 79,528 mi on unit. Second column= this report- 10,582...

2009 Toyota Yaris 1.5 1NZ-FE Auto 9,603 miles on unit at time of sample. RLI BIOSYN 0W-20 installed 11/02/09 at 4,974 unit miles and in use for 4,629 miles and 6 mo, 1 week through the winter. Toyota engine block heater was used when possible during the cold winter weather on a timer for 1-5...

Chevron URSA LE 15W-40 Ford E450 Ambulance 6.0L Diesel 4903 mi on oil + substantial idle time. 34,972 mi on unit. Napa Gold oil filter Motorcraft air filter Analysis by Polaris Labs. Elements not listed are 0. Fe---18 Al---3 Cu---3 Pb---1 Sn---1 Si---9 Na---2 K----1 Mo---38...

Ford E350 Ambulance with the 7.3L turbo diesel, 88,440 mi on unit Delo 400 LE 15W-40, 4,694 mi and 15 months on oil (ambulance service so from an hours stand point this drain is probably equivalent to about twice the odo mileage.) 2 Qts make up oil Napa Gold oil filter Analysis by...

Freightliner FL80 commercial chassis in fire engine service. Allison World Class MD3060. Mobil Delvac ATF, Allison filters. 154 hrs fluid, 1031 hrs unit. Previous fill was the factory fill. Factory fluid/filters changed out at 877 hrs. Reports by Polaris Labs. This UOA--VOA Fe--19-----0...

2010 Crown Vic Police Interceptor, 4.6L in police service. All reports Schaeffer's Supreme 7000 5W-20 SM Earliest interval is a Baldwin oil filter, all others are Napa Gold 1348. Factory air filter, all reports. All reports by Schaeffer's. Unit has an hr meter that accumulates time only...

2005 Subaru Legacy 2.5 GT (Turbo) Schaeffer's Supreme 7000 5W-30 5,238 mi on oil and Napa Gold 1365 oil filter 60,344 on unit. Napa Gold air filter Analysis by Schaeffer's. Cu-17 Fe-9 Cr-1 Al-6 Pb-1 Mo-325 P-746 Z-889 Mg-26 Ca-2137 Na-12 K-4 Antifreeze and water=0 Fuel-trace...

2008 Ford Crown Vic Police, 4.6L 10,390 mi on oil + 274 hrs of idle time (hour meter only accumulates time while idling in park). 79,528 mi on unit (Police service) Napa Gold oil and air filters Oil filter changed and 12 oz Auto-Rx added about 3k prior to sample 1.5 qt make up oil including...

2008 Nissan Rogue SL AWD QR25DE 2.5L engine and CVT transmission. 57,154 mi on unit, 4911 miles on oil and Pure One OF. Air filter was an AFE Pro Dry S installed new 10,300 miles prior to this sample. LC use at 2 oz per quart at fill and 3oz every 1 k (21 oz total). Unit has been on steady...