Recent content by Sierra977

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    What Year Did you Start Using Synthetic Motor Oil?

    Add a 160F thermostat and I fully agree. My daily-driver 1992 K1500 Suburban is 29 years old, 411,000 miles and engine, transmission, transfer case and differentials have never been opened. Oil pressure like the day I drove it off the dealer's lot. Running 160F thermostat, automatic transmission...
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    Engine oil pressure difference Mobil1 M1-201 vs M1-201a

    You are misinformed. Mil-spec CUCV vehicles were used by various federal alphabet agencies like Secret Service, Marshals Service, IRS and many others. You may rest assured those vehicles were fully air-conditioned and optioned. CUCV (Commercial Utility Cargo Vehicle) came in many configurations...
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    Engine oil pressure difference Mobil1 M1-201 vs M1-201a

    While **** Cheney was Secretary of Defense around 1989, he was responsible for changing defense procurement procedures to allow .mil purchase of less expensive "civilian" equivalents of various mil-spec items. The program has a name and I cannot remember it. This allowed "civilians" to purchase...
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    Engine oil pressure difference Mobil1 M1-201 vs M1-201a

    IIRC Chevrolet calls the engine L05. Dunno about flaky oil pressure sensors but interested. Dunno what last sentence means but interested. At operating temperature, which is on the low side of the TEMP gauge (remember 160F thermostat), oil pressure gauge has always shown an increase in pressure...
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    Engine oil pressure difference Mobil1 M1-201 vs M1-201a

    I wonder of the old M1-201 has a bypass valve or if the different filter medium is what is causing the change?
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    Engine oil pressure difference Mobil1 M1-201 vs M1-201a

    Factory oil pressure gauge in dash. Works fine for twenty-eight years - no changes. RPM read from factory tachometer in dash. Factory equipped with 160F thermostat. Truck built as CUCV for Dallas Fire Department, arrived dealer in August 1992 and DFD rejected delivery in order to get 1993 model...
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    Engine oil pressure difference Mobil1 M1-201 vs M1-201a

    Thank you for the input. Are WIX filters good also? Any other premium quality filters? Application is a 1992 Chevrolet K1500 Suburban 5.7 gasoline truck with 410,000 miles that I have owned since new. Never a problem and engine or trans have never been opened. ETA: Tried TWO different M1-201A...
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    Engine oil pressure difference Mobil1 M1-201 vs M1-201a

    For years used Mobil1 oil filter M1-201 (with Mobil1 10W-30 oil). Recently changed to filter M1-201a as the -201 is no longer available. Engine oil pressure indicated several pounds LOWER with the M1-201a oil filter. Is this normal? If I change to a different filter, what is a good choice...
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    Oldest daily use computer?

    Daily use machine is a Mac I had Apple custom build mid-2011 around a quad-core i7 and 2T drive. Supposedly cannot upgrade to latest OS but works great for me. Bit of history: I raced Porsches with Phil Ray in 1972 in San Antonio TX when he, Gus Roach, Vic Poor, Brenda Flowers and a handful of...
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    German ROWE Motor Oil

    Watching Nurburgring videos I see races sponsored by German motor oil company ROWE. Anyone have experience with ROWE? For my car the 5W-30 HC product shows GF-2 rating. http://www.rowemotoroil.com.my/ https://www.autoyas.com/US/Branchburg/1815373592045162/ROWE-Motor-Oil---USA
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    Detailing spray

    I have tried them all. Ammo Spit works best for me followed closely by Zaino Z6.
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    Harley 2014 Street Glide Special 120R engine Red Line 20W60 7500 miles

    120R cam is Harley-Davidspn factory 266E which has 0.658" lift and lobe timing optimized for higher rpm operation. (The cam seems to no longer be available from Harley. It may have been outlawed by EPA a couple years ago when the 120R engine was outlawed.) There are several aftermarket cams...
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    Harley 2014 Street Glide Special 120R engine Red Line 20W60 7500 miles

    Bonz, SGS gearing is factory stock so 60mph in sixth gear is about 2200 rpm. ETA: Tend to not fixate on speedometer or tach. Things of interest are coolant temp and oil pressure. Old racing habits die hard.
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    Harley 2014 Street Glide Special 120R engine Red Line 20W60 7500 miles

    This dyno chart is from the first pulls at 1K miles. 131/131. Tune has been refined since then.
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    Harley 2014 Street Glide Special 120R engine Red Line 20W60 7500 miles

    Bonz, an obsession with clean oil follows me around like a shadow. My daily driver is a bought-new 1992 Chevy K1500 Suburban with twenty-seven years and 401,000 trouble-free miles. Neither the engine, transmission, differentials or transfer case has ever been opened and I attribute that to fresh...
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