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Question regarding automotive gasoline. Does premium gasoline have more energy per unit volume, than regular gasoline? IMPORTANT: This is not an octane or anti-knock question. Stated otherwise, in laboratory conditions with a single cylinder test motor of nominal compression; if the same...

Many of you know that firearms need a lube that not only ensures firing reliability, but also absorbs or suspends dirt/carbon from firing. In various forums, you hear the old saw, "If it slides, grease it. If it rotates, oil it." But the point argued around the web is that traditional auto...

As some of you may be aware, just last year, GM changed their recommendation for Corvette & Camaro engine oil to the relatively new Mobil 1 0W-40 ESP Dexos 2 Not to be confused with the European formula, see image below. This Mobil1 OW40 Dexos 2 oil (Mobil 1 ESP Formula 0W-40) is also the...

I’m curious if anyone could make a suggestion for me. There is this machine that has a gear box that is driven by a 3ph motor. The gear box itself has standard cut gears and its selectable for range speeds. There’s also a DC electromagnetic clutch pack and engages and disengages for the final...

RE: 2016 Stingray Base Coupe I was reviewing my 500mi dealer oil change receipt recently, and I note the part list for the oil is: FP Number 12345885. . . . .Description OIL-ENGIN 8.800 Searching does not pull up much info, but what I did find is leading me to believe that the dealership filled...

I discovered an unsent oil sample in a sealed Blackstone bottle sitting on the workbench in the garage. The sample was taken in December 2014, so it has been in the sealed bottle for about 9 months, albeit in the wild cold and the summer heat swings of a Midwest garage. Question: Is the oil...

Hello! I recently purchased a Kia Forte Koup SX. It has the 2.4L engine. I believe it is a Theta/Theta-II Engine; correct me if wrong here. The car has ~500 miles on it now. The OM recommends 7500 mile OCI for my driving conditions. But given the factory fill UOAs I've seen over the years in...

Engine we will be discussing: GM LS3 Midwestern climate. Total miles driven per year, less than 7000. No driving in inclement weather or during very cold days. No drag racing, but there are frequent high speed excursions! Current oil change history: 250mi Mobil 1 5w-30, 3000mi Penzoil...

Mower, 1992 Lawn-Boy S21ZSR Always used Lawn Boy oil @ 32:1 First, the back story: The lower seal started leaking again, and oil was sprayed across the deck. 3rd seal in the last 5 years. 1st time I just replaced the seal. 2nd time I checked the crankshaft (even though I never hit anything...

This question concerns my elderly Father, and his 1992 Chevy S10 with the V6 engine. He does mixed city/highway driving. Trips to the doctor and grocery store, with occasional highway trips of about 200 miles (each trip) four to six times a year, to visit other olde duffers, and attend club...

I did not mis-type. This is not an Auto-RX question. I searched the forum for information on RxP, the "Gas Kicker" without results. Has anyone tried RxP, and what were the results?

Hello; I will be doing my first Blackstone Standard Analysis with a TBN. I have ordered the kit, but it has not arrived, and I want to change my oil. I need to know how much to seal in a clean containers to await the arrival of the test kit. Question: How many oz or mil does Blackstone need...

I have a 2004 Pontiac Sunfire with the automatic transaxle. I posted this question on a jbody club forum: This is an answer I received: REALITY CHECK - - What do you oil gurus say?

Received this invite in my email. From: Peters Marketing Research To: Me Subject: Focus Group Discussion at Peters Marketing Research Peters Marketing Research is looking for males, age 25-50, who change their own motor oil. If you fit this profile give us a call. The topic of discussion...

This is the scenario: I am going to be doing some performance work on my 2002 T/A. Being installed is the performance cam/valve springs, timing chain, ported oil pump. I have Redline oil in the sump. I had intended to change the oil after my swap, but really, the oil has less than 600 miles on...

The family has a old Yard-Man Tiller Model #21030-7 that recently broke down due to a badly worn chain drive sprocket. The tiller is 30 years old, but only saw about an hour of use on average each year. The engine, carriage, & tines were well maintained, but the chain drive failed this year...

Hello! I remember reading some comments recently about Mobil 5w-30 synthetic fairing poorly on tests. I'm not sure if I read it here on bobistheoilguy. I do think that the info was regarding GM using it in the LS1/LS2 engines. I'm having trouble finding the information with the search engine...

Let me set up a basis for this question. I have a 2002 LS1 Trans Am. It has ~14,000 miles. I run Redline exclusively in the T/A. The GM owners manual strongly recommends using 5w-30 oil and allows the use of 10w-30 oil above 0 degrees F. I was running 5w-30 for the first few changes until I...