1994 Buick Lesabre Custom Sedan 4-door 3.8l One Owner Florida Tittle on 2040-cars

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GM warning 800,000 owners that their cars may need oil changes more frequently than they say

The days of changing your engine oil every 3,000 miles are long gone thanks to most cars having automatic oil monitoring systems, but about 800,000 General Motors vehicles apparently have incorrect monitoring software that is leading to premature engine component wear. According to Autoweek, certain 2010-2012 Buick LaCrosse, Regal, Chevrolet Equinox and GMC Terrain models equipped with 2.4-liter four-cylinder engines could be going too long in between oil changes resulting in a higher-than-normal number of warranty claims for the engine's balance chain. The balance chain links the balance shaft to the crankshaft, and a worn one can produce higher noise levels.
As a fix, GM dealers will be reprogramming the software for the monitors in an effort to reduce the interval between oil changes, which varies based on driving habits and conditions. Through February 2015, the software update will be done at no cost to vehicle owners, but since this is not a recall, after that point, it will be up to the discretion of dealers as to whether or not they will charge for the service. What isn't immediately clear is whether GM plans on giving assistance to out-of-warranty customers who are experiencing engine issues from the worn chain.

Junkyard Gem: 1972 Buick Centurion Four-Door Hardtop

During the mid-to-late 1960s, General Motors made flashy, semi-sporty versions of each of its full-sized B-body cars. Oldsobile had the Delta 88 Royale, for example, while Pontiac offered the Grand Prix. The rakish big Buick of that period was the Wildcat, built through the 1970 model year. Just as the Wildcat shoved aside the Invicta, the Centurion appeared in 1971 to replace the Wildcat. Named after a famous 1956 concept car, production of the Centurion continued just through 1973. Just over 100,000 were built, and here's one of those rarities in a Colorado self-service boneyard. The Centurion was available as a hardtop coupe, a convertible, and a four-door hardtop sedan. It was at heart a LeSabre with a different grille and other cosmetic touches. Instead of the usual triple-shield Buick emblems, the Centurion got Roman-soldier badges. Perhaps the world's best-known Centurion is the '72 convertible driven by Kurt Russel's slimy-car-salesman character in the 1980 film, Used Cars. Kurt ends up selling his Centurion to a customer he "baited" from the rival lot across the street. In 1974, the Centurion was replaced by the LeSabre Luxus, a trim-level designation that Buick swiped from Opel. The only engine available in the 1971 and 1972 Centurion was Buick's 455-cubic-inch (7.5-liter) V8, renowned for its low-rpm torque. Power numbers for 1972 dropped considerably compared to 1971, mostly due to the switch from gross to net measurements that year; the base '72 Centurion 455 was rated at 225 horsepower and 360 pound-feet, while an optional higher-compression version with dual exhaust made 270 hp and 390 pound-feet. All Centurions came off the assembly line with three-speed automatic transmissions. For 1973, a Buick 350 (5.7-liter) V8 became standard Centurion equipment, with the 455 an extra-cost option. The original buyer of this Centurion probably regretted the single-digit fuel economy of the 455 when OPEC shut off the oil taps in October of 1973. Front Range Colorado isn't particularly rusty, but this car looks like it must have spent some time in a road-salty place like Wisconsin or Iowa. There isn't much left of the padded vinyl roof, standard equipment on all Centurion sedans and coupes. It would have been prohibitively expensive to make this car nice again, so here it sits. This radio played AM and 8-track tapes and cost $363 extra on a $4,508 car (that's $2,615 and $32,485 in inflation-adjusted 2022 dollars).

2020 Buick Enclave adds Sport Touring trim, tweaks tech

With its redesign for 2018, the Buick Enclave added the fancy Avenir trim level. Now the 2020 Enclave moves a bit in the other direction with a new Sport Touring model. The Sport Touring package is based on the Essence trim level, and consists of a body-color grille surround in place of chrome, and special 20-inch wheels that combine a bright finish with darker insets. The package doesn't touch the 310-horsepower V6 or the Enclave's suspension, so this development is hardly one to threaten the Ford Explorer ST or the Dodge Durango SRT8. Instead, it is perhaps a baby step toward an Enclave Gran Sport, although we might rather see the Regal TourX wagon move in that direction. Other Enclave news falls into the more traditional Buick wheelhouse. There's a new message function and power lumbar adjustment for the Premium and Avenir models. GM's HD rear vision camera — in which the rear-view mirror can switch to show a wide-angle camera feed — is newly available, as is an HD surround-view feature. In other tech developments, the standard 8-inch touchscreen infotainment system gains new capabilities, now supporting connected navigation and Sirius XM's higher-level 360L service, both of which require a subscription. The 2020 Buick Enclave rolls quietly into dealerships this summer, with an asking price of $41,195.