Recent content by f355spider

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Which brand? I have only experienced this with flooded batteries. I've had great luck with AGMs. The only leakers were three Optima Redtop 34R AGMs in a row...but they leaked out the top vents, not near the terminals. I quit buying Optima.

If you want an easy on/off wax that gives great gloss, give P21S a try ($49). You can find it at most Porsche and Jaguar/Land Rover dealerships. But here is a secret: They market the exact same product under a different brand called S100 and sold in motorcycle shops like Harley Davidson. I...

Prices are highly variable. Depends on your location, the service provider (independent, affiliated with new car dealership), products used and depth of the actual service provided. Also the skill and ability of the provider. It is difficult to give a specific number. Be very wary of any...

That is how most BMWs secure batteries...been that way for decades.

I'm on the west coast...even with their AZ warehouse, many orders ship from their CT warehouse anyway, so I always plan in advance for maintanence items...as it is 11 to 12 days delivery time. I get a surprise if it actually ships from AZ...then its about 7 to 8 days.

Good advice. I got 370k out of my Denso alt in my 2007 Tundra and recently had a Denso reman from the dealer installed, it was suprisingly inexpensive with the labor...like $400 all in. I'm at 388k now, all good.

Which Mobil 1 ESP?

The jump connections on one of my BMWs is located under the hood, and I'm not going to repeatedly open the hood to charge the car (I've replaced the hood cable on one of my BMWs twice over the past 20 years, lesson learned). My solution was the lengthen the ring terminal/SAE plug and run it up...

Same, all my cars either came with AGM or I switched to them...with the exception of my Tundra still on a flooded. Garaged cars sit on battery tenders 24/7, the driveway cars get plugged into a tender at least once or twice a week (all cars have a pig tail installed or factory battery tender...

Admittedly, only a very few brands of battery tenders/chargers offer temperature compensation. I'm uncertain it is a "must have" feature, but it certainly doesn't hurt. My Pulse Tech and two each, Granite Digital "save a battery" battery tenders do not have temperature compensation...only my...

BMW has had oil life monitors for a looooong time. My 2001 BMW 540 has one. They first started making E39 540s in 1997, and they had oil life monitors on the first ones through the last in 2003.

I guess you could test the theory by unplugging the temperture compensation sensor. Or I could. I unplugged the temp sensor on the 2012 AGM for a few days and it flat lined on float at 13.2 volts. With temp compesation on, it will run up to 14vts overnight in my garage when it gets cold enough...

Agreed. The only cheapo "wall wart" battery tender I own now is the HF Battery Minder brand that is exclusively sold through Harbor Freight. It works okay, but doesn't float as high a voltage as their regular more expensive units, and the temperature compensation is also very mild. It...

Battery Minder is the 2012 AGM. The Pulse Tech is the XC450 on AGM mode. The Pulse Tech has a desulfation as part of the algorithm earlier in the charging process, but only activates if the initial testing phase deems it is required. I'm unsure how bad the battery has to be before it will be...