Weldon Spring Auto
818 O'Fallon Road, Saint Charles, MO 63304 636.498.6600

Engine and Exhaust

Alt + /

Better Service, Better Fuel Economy in St. Charles

Maintaining your car or truck will make it more efficient.  It works the way it was designed to and that means it uses less fuel:  And you save money. To help organize our discussion, let&r...
Published on: Jan 23, 2023

Fuel System Service at Weldon Spring Auto

Today's 
Weldon Spring Auto post contains a quick overview of the fuel system. It starts with the fuel tank. The fuel pump is located inside the tank and pumps fuel out to the engine. Somewhere along ...
Published on: Jul 11, 2022

E85 Fuel Safety For St. Charles Drivers

This automotive safety warning is coming from a very unusual source: fire fighting experts. You’ve probably heard of E-85 gasoline.  Some newer vehicle models are specifically built to run ...
Published on: Dec 21, 2021

Fuel System

I’d like to give you a quick overview of the fuel system.  It starts with the fuel tank.  The fuel pump is located inside the tank and pumps fuel out to the engine.  Somewhere alo...
Published on: Jun 14, 2021

Proper Grade of Gas

There are a lot of misconceptions about fuel grades – and by fuel grades I mean the octane rating. With names like “Standard," “Super," “Plus," and “Premium,” it&rs...
Published on: Jun 02, 2021

Weldon Spring Auto Tech Question On Your Fuel Pump

{{ image('MzM1') }} Weldon Spring Auto Tech Question:I was driving on a local St. Charles road and my vehicle started sputtering. And then the engine finally quit and I couldn't get it started. I was...
Published on: Jan 30, 2020

Time To Take Another Look at Diesels

{{ image('MzU1') }} If you haven't looked into diesel engines lately, you may be interested in today's post. Why should you care about modern diesel engines? Fuel efficiency, for starters. Because di...
Published on: Dec 02, 2019

Forced Induction

{{ image('MzU0') }} Most St. Charles residents associate turbochargers and superchargers with hot rods and racing. However, the number of everyday cars and trucks coming to St. Charles from the facto...
Published on: Nov 07, 2019